CN205398664U - Hot -blast furnace gas pipeline sweeps device - Google Patents
Hot -blast furnace gas pipeline sweeps device Download PDFInfo
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- CN205398664U CN205398664U CN201620182850.2U CN201620182850U CN205398664U CN 205398664 U CN205398664 U CN 205398664U CN 201620182850 U CN201620182850 U CN 201620182850U CN 205398664 U CN205398664 U CN 205398664U
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- valve
- nitrogen
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- gas
- blast
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Abstract
The utility model relates to a gas pipeline cleaning device specifically is a hot -blast furnace gas pipeline sweeps device. Adopt including the hot -blast furnace and with the cool air hose in female pipe of hot -blast furnace intercommunication, the hot -blast main of connecting hot -blast source, connection cold wind source, be provided with the burning valve on female pipe, be provided with the hot -blast valve on the hot -blast main, be provided with the cold -blast valve on the cool air hose, the gas piping that connects the coal gas source with female pipe intercommunication, the last coal gas trip valve that is provided with of gas piping, the nitrogen gas trunk line of connecting the nitrogen gas source communicates with nitrogen gas pipe no. 1, nitrogen gas pipe no. 2 respectively, be provided with the nitrogen purging valve on the nitrogen gas trunk line, nitrogen gas pipe no. 1 passes through the burning valve with nitrogen gas entrance between the hot -blast furnace with female pipe intercommunication, nitrogen gas pipe no. 2 passes through the burning valve with nitrogen gas entrance between the coal gas trip valve with the technical scheme of female pipe intercommunication. The utility model discloses break down to cut off the time at the coal gas trip valve, can guarantee that the hot -blast furnace normally trades stove and blast furnace safety in production.
Description
Technical field
The utility model relates to gas pipeline clearing apparatus, specifically a kind of air stove gas pipeline blow device.
Background technology
In the prior art, known technology is, iron and steel metallurgical industry is for the air stove of blast furnace, during stopping burning air-supply, the pipeline by entrance air stove is needed to send hot blast for blast furnace again after carrying out coal gas cleaning, in like manner, air-supply turns burns between the campaign, after needing to clean the hot blast in gas pipeline, gas delivery carries out hot blast stove burning again, enter and the gas pipeline of air stove has two valves, one gas stop valve, one combustion valve, nitrogen pipeline entrance at ordinary times is between gas stop valve and combustion valve, after air stove stops burning, need to cut off gas stop valve, nitrogen sparge tube road entrance is between gas stop valve and combustion valve, open nitrogen purge valve, pass into nitrogen to carry out cleaning and process after pipeline, open cold blast sliding valve again, open hot-blast valve, hot blast is sent to blast furnace.But due to spare part quality problems, it may appear that valve damages or breaks down, if gas stop valve breaks down when cannot cut off, changing valve and must stop blast furnace gas and replace with nitrogen, process overlong time affects blast furnace and normally produces.
Summary of the invention
For overcoming above technical problem, this utility model provides a kind of air stove gas pipeline blow device.
For achieving the above object, this utility model adopts the following technical scheme that
A kind of air stove gas pipeline blow device, manages, is connected the warm-air pipe of hot air source including air stove and the mother connected with described air stove, connect the cool air hose in cold wind source；Described female pipe is provided with combustion valve, described warm-air pipe is provided with hot-blast valve, described cool air hose is provided with cold blast sliding valve；The gas piping connecting coal gas source connects with described female pipe, and described gas piping is provided with gas stop valve；The nitrogen main pipeline connecting source nitrogen connects with nitrogen tube one, nitrogen tube two respectively, and described nitrogen main pipeline is provided with nitrogen purge valve；Described nitrogen tube one is connected with described female pipe by the nitrogen pipeline entrance between described combustion valve with described air stove, and described nitrogen tube two is connected with described female pipe by the nitrogen pipeline entrance between described combustion valve with described gas stop valve.
As preferably, described nitrogen tube one being provided with blind plate；As preferably, described nitrogen tube one being provided with valve；As preferably, described nitrogen tube two being provided with valve；As preferably, described blanking plate selection 8 word blind plate；As preferably, described nitrogen purge valve is electric valve.
The beneficial effects of the utility model are: this utility model increases a nitrogen pipeline entrance between combustion valve and air stove, break down can not cut off once gas stop valve, gas stop valve can be made to be held open state disable, directly cut off combustion valve, open nitrogen purge valve, nitrogen enters gas pipeline by the nitrogen inlet between combustion valve and air stove to carry out cleaning pipeline, thus can ensure that the safety in production of blast furnace, treats that damping down chance changes gas cutting valve.As can be seen here, this utility model compared with prior art, when gas stop valve breaks down and can not cut off, it is ensured that air stove is normally changed stove and blast furnace safety and produced.
Accompanying drawing explanation:
Fig. 1 is the structural representation of this utility model embodiment 1.
Fig. 2 is the structural representation of this utility model embodiment 2.
In figure: 1. combustion valve, 2. gas stop valve, 3. nitrogen purge valve, 4. hot-blast valve, 5. cold blast sliding valve, 6. blind plate, 7 valves, 8 air stovees, 9: female pipe, 10: warm-air pipe, 11: cool air hose, 12: gas piping, 13: nitrogen main pipeline, 14: nitrogen tube one, 15: nitrogen tube two.
Detailed description of the invention
Embodiment one
A kind of air stove gas pipeline blow device, including air stove 8 and with female pipe 9 of described air stove 8 connection, the cool air hose 11 being connected the warm-air pipe 10 of hot air source, connection cold wind source；Described female pipe 9 is provided with combustion valve 1, described warm-air pipe 10 is provided with hot-blast valve 4, described cool air hose 11 is provided with cold blast sliding valve 5；The gas piping 12 connecting coal gas source connects with described female pipe 9, and described gas piping 12 is provided with gas stop valve 2；The nitrogen main pipeline 13 connecting source nitrogen connects with nitrogen tube 1, nitrogen tube 2 15 respectively, and described nitrogen main pipeline 13 is provided with nitrogen purge valve 3；Described nitrogen tube 1 is connected with described female pipe 9 by the nitrogen pipeline entrance between described combustion valve 1 with described air stove 8, and described nitrogen tube 2 15 is connected with described female pipe 9 by the nitrogen pipeline entrance between described combustion valve 1 with described gas stop valve 2.Described nitrogen tube 1 is provided with blind plate 6；Described nitrogen tube 2 15 is provided with valve 7；8 word blind plates selected by described blind plate 6；Described nitrogen purge valve 3 is electric valve.
Embodiment two
A kind of air stove gas pipeline blow device, including air stove 8 and with female pipe 9 of described air stove 8 connection, the cool air hose 11 being connected the warm-air pipe 10 of hot air source, connection cold wind source；Described female pipe 9 is provided with combustion valve 1, described warm-air pipe 10 is provided with hot-blast valve 4, described cool air hose 11 is provided with cold blast sliding valve 5；The gas piping 12 connecting coal gas source connects with described female pipe 9, and described gas piping 12 is provided with gas stop valve 2；The nitrogen main pipeline 13 connecting source nitrogen connects with nitrogen tube 1, nitrogen tube 2 15 respectively, and described nitrogen main pipeline 13 is provided with nitrogen purge valve 3；Described nitrogen tube 1 is connected with described female pipe 9 by the nitrogen pipeline entrance between described combustion valve 1 with described air stove 8, and described nitrogen tube 2 15 is connected with described female pipe 9 by the nitrogen pipeline entrance between described combustion valve 1 with described gas stop valve 2.Described nitrogen tube 1 is provided with blind plate 6；Described nitrogen tube 1 is provided with valve 7；Described nitrogen tube 2 15 is provided with valve 7.
This utility model increases a nitrogen pipeline entrance between combustion valve and air stove, and when properly functioning, pipeline can be shut by the blind plate in nitrogen tube one, and nitrogen enters pipeline by the entrance between gas stop valve and combustion valve and cleans；Break down can not cut off once gas stop valve, gas stop valve can be made to be held open state disable, directly cut off combustion valve, pull out the blind plate in nitrogen tube one, opening the valve in nitrogen purge valve and nitrogen tube one, close the valve in nitrogen tube two, now nitrogen is undertaken cleaning pipeline by the nitrogen inlet entrance gas pipeline between combustion valve and air stove, thus can ensure that the safety in production of blast furnace, treat that damping down chance changes gas cutting valve.
Claims (6)
1. an air stove gas pipeline blow device, it is characterised in that: include air stove (8) and the mother connected with described air stove (8) manages (9), is connected the warm-air pipe (10) of hot air source, connects the cool air hose (11) in cold wind source；Described female pipe (9) is provided with combustion valve (1), described warm-air pipe (10) is provided with hot-blast valve (4), described cool air hose (11) is provided with cold blast sliding valve (5)；The gas piping (12) connecting coal gas source connects with described female pipe (9), and described gas piping (12) is provided with gas stop valve (2)；The nitrogen main pipeline (13) connecting source nitrogen connects with nitrogen tube one (14), nitrogen tube two (15) respectively, and described nitrogen main pipeline (13) is provided with nitrogen purge valve (3)；Described nitrogen tube one (14) is connected with described female pipe (9) by the nitrogen pipeline entrance between described combustion valve (1) with described air stove (8), and described nitrogen tube two (15) is connected with described female pipe (9) by the nitrogen pipeline entrance between described combustion valve (1) with described gas stop valve (2).
2. a kind of air stove gas pipeline blow device as claimed in claim 1, it is characterised in that: described nitrogen tube one (14) is provided with blind plate (6).
3. a kind of air stove gas pipeline blow device as claimed in claim 1, it is characterised in that: described nitrogen tube one (14) is provided with valve (7).
4. a kind of air stove gas pipeline blow device as claimed in claim 1, it is characterised in that: described nitrogen tube two (15) is provided with valve (7).
5. a kind of air stove gas pipeline blow device as claimed in claim 2, it is characterised in that: 8 word blind plates selected by described blind plate (6).
6. a kind of air stove gas pipeline blow device as claimed in claim 1, it is characterised in that: described nitrogen purge valve (3) is electric valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620182850.2U CN205398664U (en) | 2016-03-10 | 2016-03-10 | Hot -blast furnace gas pipeline sweeps device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620182850.2U CN205398664U (en) | 2016-03-10 | 2016-03-10 | Hot -blast furnace gas pipeline sweeps device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205398664U true CN205398664U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620182850.2U Expired - Fee Related CN205398664U (en) | 2016-03-10 | 2016-03-10 | Hot -blast furnace gas pipeline sweeps device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205398664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586461A (en) * | 2016-03-10 | 2016-05-18 | 山东钢铁股份有限公司 | Purging device and purging method for gas pipeline of hot blast stove |
-
2016
- 2016-03-10 CN CN201620182850.2U patent/CN205398664U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586461A (en) * | 2016-03-10 | 2016-05-18 | 山东钢铁股份有限公司 | Purging device and purging method for gas pipeline of hot blast stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 Termination date: 20190310 |