CN205874471U - Oxygen control device - Google Patents
Oxygen control device Download PDFInfo
- Publication number
- CN205874471U CN205874471U CN201620560341.9U CN201620560341U CN205874471U CN 205874471 U CN205874471 U CN 205874471U CN 201620560341 U CN201620560341 U CN 201620560341U CN 205874471 U CN205874471 U CN 205874471U
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- Prior art keywords
- oxygen
- valve
- sleeve pipe
- regulator
- sleeve
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Abstract
The utility model provides an oxygen control device, the device includes: the temperature data collection ware, the temperature data collection ware sets up at the hot -blast furnace furnace roof, and the passing signal line links to each other with oxygen regulator's one end, oxygen regulator, oxygen regulator sets up in the control room, oxygen regulator's the other end links to each other with the one end of oxygen governing valve, the oxygen governing valve, the oxygen governing valve sets up on burner blower, the other end of oxygen governing valve with be used for control oxygen governing valve valve opening's locator links to each other, thus, oxygen regulator can operate according to the furnace roof temperature parameters of temperature data collection ware collection, sends computation result to the locator, the locator then is based on location and manual regulation the valve rod of oxygen governing valve to can adjust oxygen content, reduce the air -fuel ratio, guarantee the safety in production.
Description
Technical field
This utility model belongs to blast-furnace roasting technical field, particularly relates to a kind of Oxygen control device.
Background technology
Hot blast temperature is one important technology economic indicator of blast furnace, and improving hot blast temperature level is to reduce the master of coke consumption
Want means.Domestic steel looks forward to the pathogenic wind-warm that provided of more advanced air stove typically between 1150～1200 DEG C, state-of-the-art hot blast
Temperature levels also only 1250 DEG C.To this end, most domestic steel mill uses Oxygen-enriched Combustion Technology in Hot Blast Stove to improve hot blast temperature.
Hot blast stove burning process is: combustion air and blast furnace gas (main component) or dash with a small amount of coal gas of converter by one
Certainty ratio mixes burning in the ceramic burner being incorporated in air stove, and after burning, produced waste gas flowing from bottom to top, passes through
Radiation and the checker brick in conduction heating air stove vault and regenerator, until dome temperature reaches certain temperature and just stops burning
Stove, now checker brick have accumulated enough heats.
But, combustion air can add a certain proportion of oxygen, along with the increase of amount of oxygen, air capacity necessarily reduces,
The noble gas not participating in burning in mixed air reduces, then participates in the exhausted air quantity after coal gas mixed combustion and reduces, useless
Tolerance lowers and then certainly will reduce the conduction of heat of air stove.Further, due to along with the rising of oxygen additional proportion, cost with on
Rise.
It addition, using oxygen-enriched combusting air stove can there is flame tempering, extinguishing and deflagration phenomenon；Along with oxygen proportion
Increase, also can there is the risk that oxygen is quick-fried.
Based on this, need a kind of Oxygen control device at present badly, to solve the problems referred to above of the prior art.
Utility model content
The problem existed for prior art, this utility model embodiment provides a kind of Oxygen control device, with energy root
According to the content of oxygen in air heating furnace roof temperature automatic adjustment combustion air, reduce air-fuel ratio, it is ensured that safety in production.
This utility model provides a kind of Oxygen control device, and described device includes:
Temperature sampler, described Temperature sampler is arranged on air heating furnace roof, by holding wire and the one of oxygen regulator
End is connected；
Oxygen regulator, described oxygen regulator is arranged in control room, the other end of described oxygen regulator and oxygen
One end of regulation valve is connected；
Oxygen regulating valve, described oxygen regulating valve is arranged on combustion fan, the other end of described oxygen regulating valve and use
It is connected in the localizer controlling described oxygen regulating valve valve opening.
In such scheme, described device also includes:
Image acquisition device, described image acquisition device is arranged in the peep-hole of described air stove；
Fire hole, one end of described fire hole is connected with one end of first sleeve；
First sleeve, described first sleeve outer cover is connected to the second sleeve pipe, is provided with cable in described first sleeve；
Monitor, described monitor is connected with described control cable by rosette.
In such scheme, described device also includes: nitrogen venthole, and described nitrogen venthole becomes circle distribution at described point
Outside fire hole.
In such scheme, described device also includes:
Nitrogen inlet, described nitrogen inlet is arranged on one end of described second sleeve pipe, and is positioned at the one of described second sleeve pipe
Side；
Nitrogen outlet, described nitrogen inlet is arranged on one end of described second sleeve pipe, and is positioned at the another of described second sleeve pipe
Side；
Dividing plate, described dividing plate is arranged on the other end of described second sleeve pipe.
In such scheme, described device also includes: the 3rd sleeve pipe, and described 3rd casing pipe sleeve is connected on outside described second sleeve pipe
Portion.
In such scheme, described device also includes:
Water-cooled entrance, described water-cooled entrance is arranged on one end of described 3rd sleeve pipe, and is positioned at the one of described 3rd sleeve pipe
Side；
Water-cooled exports, and the outlet of described water-cooled is arranged on one end of described 3rd sleeve pipe, and is positioned at the another of described 3rd sleeve pipe
Side.
In such scheme, described Temperature sampler specifically includes: thermocouple.
In such scheme, described image acquisition device specifically includes: photographic head.
In such scheme, described device also includes: gas quick cut off valve, described gas quick cut off valve and described hot blast
First port of the burner of stove is connected.
In such scheme, described device also includes: oxygen repid cut-off valve, described oxygen repid cut-off valve and described hot blast
Second port of the burner of stove is connected.
This utility model provides a kind of Oxygen control device, and described device includes: Temperature sampler, described temperature acquisition
Device is arranged on air heating furnace roof, is connected with one end of oxygen regulator by holding wire；Oxygen regulator, described oxygen regulator
Being arranged in control room, the other end of described oxygen regulator is connected with one end of oxygen regulating valve；Oxygen regulating valve, described oxygen
Controlled atmosphere joint valve is arranged on combustion fan, the other end of described oxygen regulating valve be used for controlling described oxygen regulating valve valve opening
The localizer of degree is connected；So, described oxygen regulator can carry out computing according to the top temperature parameter of Temperature sampler collection,
Sending operation result to localizer, described localizer is then according to described location and the valve that manually adjusts described oxygen regulating valve
Bar, can adjust oxygen content, reduces air-fuel ratio, it is ensured that safety in production.
Accompanying drawing explanation
The overall structure schematic diagram of the Oxygen control device that Fig. 1 provides for this utility model embodiment；
Structural representation when Fig. 2 is arranged in fire hole for the image acquisition device that this utility model embodiment provides.
Description of reference numerals:
1-Temperature sampler；2-oxygen regulator；3-oxygen regulating valve；4-combustion fan；5-localizer；6-air-breathing
Valve；7-air control valve；8-glasses valve；9-the first diffusion valve；10-non-return valve；11-oxygen repid cut-off valve；12 first cut-offs
Valve；13-the second diffusion valve；14 automatic amount adjusting valves；15-automatic pressure regulator；16-nitrogen purge valve；17-the second stop valve；18-coal
Gas firing valve；19-gas stop valve；20-gas regulator；21-gas quick cut off valve；22-nitrogen purge valve；23-image
Harvester；24-fire hole；25-first sleeve；26-the second sleeve pipe；27-monitor；28-rosette；29-nitrogen venthole；
30-nitrogen inlet；31-nitrogen outlet；32-dividing plate；33-water-cooled entrance；34-and water-cooled outlet；35-the 3rd sleeve pipe.
Detailed description of the invention
In order to air-fuel ratio can be reduced according to the content of oxygen in air heating furnace roof temperature automatic adjustment combustion air, protect
Card safety in production, this utility model provides a kind of Oxygen control device, and described device includes: Temperature sampler, described temperature
Harvester is arranged on air heating furnace roof, is connected with one end of oxygen regulator by holding wire；Oxygen regulator, described oxygen is adjusted
Joint device is arranged in control room, and the other end of described oxygen regulator is connected with one end of oxygen regulating valve；Oxygen regulating valve, institute
State oxygen regulating valve to be arranged on combustion fan, the other end of described oxygen regulating valve be used for controlling described oxygen regulating valve valve
The localizer of door aperture is connected.
Below by drawings and the specific embodiments, the technical solution of the utility model is described in further detail.
The present embodiment provides a kind of Oxygen control device, applies on oxygen-enriched hot air stove, as it is shown in figure 1, described device bag
Include: Temperature sampler 1, oxygen regulator 2, oxygen regulating valve 3, combustion fan 4 and localizer 5；Wherein,
Described Temperature sampler 1 is arranged on air heating furnace roof, is connected by one end of holding wire with oxygen regulator 2；Institute
Stating oxygen regulator 2 to be arranged in control room, the other end of described oxygen regulator 2 is connected with one end of oxygen regulating valve 3；Institute
State oxygen regulating valve 3 to be arranged on combustion fan 4, the other end of described oxygen regulating valve 3 be used for controlling the regulation of described oxygen
The localizer 5 of valve 3 valve opening is connected.Wherein, described Temperature sampler 1 is specifically as follows thermocouple；Described localizer 5 is arranged
On described oxygen regulating valve 3.
Specifically, described device also includes: air-breathing valve 6, air control valve 7, glasses valve the 8, first diffusion valve 9；Its
In, owing to the air stove in the present embodiment is internal-combustion hot blast stove, one end of the most described air-breathing valve 6 and hot-blast stove gas burner
The first port be connected, the other end of described air-breathing valve 6 is connected with one end of air control valve 7；Described air control valve 7
The other end be connected with one end of described glasses valve 8, the other end of described glasses valve 8 is connected with one end of described combustion fan 4,
The other end and first diffusion valve 9 of described combustion fan 4 connect；When staff needs to overhaul air stove, need
Close described first diffusion valve 9.
Here, described device also includes: non-return valve 10, oxygen repid cut-off valve the 11, first stop valve the 12, second diffusion valve
13, automatic amount adjusting valve 14, automatic pressure regulator 15, nitrogen purge valve the 16, second stop valve 17；Wherein, the one of described non-return valve 10
End is connected between described air control valve 7 and described glasses valve 8.The other end of described non-return valve 10 and oxygen repid cut-off valve
One end of 11 is connected, and the other end of described oxygen repid cut-off valve 11 and one end of the first stop valve 12 are connected, described first section
Only the other end of valve 12 is connected with one end of automatic amount adjusting valve 14, and one end of described second diffusion valve 13 is connected to described first section
Only between valve 12 and described automatic amount adjusting valve 14.The other end of described automatic amount adjusting valve 14 and one end of described automatic pressure regulator 15
Being connected, the other end of described automatic pressure regulator 15 and one end of the second stop valve 17 are connected；Described nitrogen purge valve 16 is connected to
Between the other end and second stop valve 17 of described automatic pressure regulator 15.
Described device also includes: gas-fired valve 18, gas stop valve 19, gas regulator 20, gas quick cut off valve
21 and nitrogen purge valve 22；Wherein, one end of described gas-fired valve 18 is connected with the second port of described burner, described nitrogen
Gas blow down valve 22 is connected to described in described second port between gas-fired valve 18, the other end of described gas-fired valve 18 and institute
The one end stating gas stop valve 19 is connected, one end phase of the other end of described gas stop valve 19 and described gas regulator 20
Even, the other end of described gas regulator 20 is connected with one end of gas quick cut off valve 21.
Further, in order to also include with the situation of flare in Real Time Observation to air stove, described device: image acquisition
Device 23, fire hole 24, first sleeve the 25, second sleeve pipe 26, monitor 27；Wherein, described image acquisition device 23 is arranged on described
In the fire hole 24 of air stove；For gathering the image of flare in air stove, described image acquisition device 23 is specifically as follows shooting
Head.
Seeing Fig. 2, one end of described fire hole 24 is connected with one end of first sleeve 25；Described first sleeve 25 outer cover
It is connected to the second sleeve pipe 26, described first sleeve 25 is provided with cable, for the image that image acquisition device 23 collects is passed through
Cable sends to monitor 27, and described cable can be copper core cable.Here, described oxygen repid cut-off valve 11 is with described
Gas quick cut off valve 21 is connected with monitor 27 by control cable respectively.
Described monitor 27 is connected with described control cable by rosette 28, for playing the flare burning in air stove
Image.Wherein, described monitor 27 specifically can include computer.
Here, in order to avoid described image acquisition device 23 is stained with ash, described device also includes: nitrogen venthole 29, nitrogen enter
Mouth 30, nitrogen outlet 31 and dividing plate 32；Wherein, described nitrogen venthole 29 becomes circle distribution outside described fire hole 24；Institute
State nitrogen inlet 30 and be arranged on one end of described second sleeve pipe 26, and be positioned at the side of described second sleeve pipe 26；Described nitrogen enters
Mouth 30 is arranged on one end of described second sleeve pipe 26, and is positioned at the opposite side of described second sleeve pipe 26；Described dividing plate 32 is arranged on
The other end of described second sleeve pipe 26.
Being damaged because of high temperature in order to avoid image acquisition device 23, described device also includes: water-cooled entrance 33 and water-cooled go out
Mouth 34, wherein, described water-cooled entrance 33 is arranged on one end of described 3rd sleeve pipe 35, and is positioned at the one of described 3rd sleeve pipe 35
Side；One end that described water-cooled outlet 34 is arranged on described 3rd sleeve pipe 35, and it is positioned at the opposite side of described 3rd sleeve pipe 35, described
3rd sleeve pipe 35 is socketed in the outside of described second sleeve pipe 26, and described 3rd sleeve pipe 35 is specially stainless steel tube, a size of
In actual application, staff can be by flare burning image in monitor 27 Real Time Observation air stove, with logical
Crossing flare burning and judge gas-fired situation, specifically, such as flame kernel presents yellow, and the micro-indigo plant of surrounding is transparent, it is seen that burning
Opposite, room brick wall, illustrates that sky, gas proportion are suitable, can guarantee that vault is stable and rises rapidly at temperature raising period, and soak is stable；Can protect
Card EGT is uniform, stable to be risen.
Such as flame presents sky blue, and bright dazzling, combustor is the most high-visible, but shades, and combustion-supporting air quantity mistake is described
Many, dome temperature rising does not slowly reach setting, and EGT rises fast, and oxygenous many in explanation exhaust gas constituents.
Such as flame presents dark red, muddy, does not sees combustor furnace wall, illustrates that coal gas amount is too much, on dome temperature
Rise and slowly do not reach setting, and EGT rises fast, and many containing carbon monoxide in exhaust gas constituents.
While image acquisition device 23 gathers image, described Temperature sampler 1 is by the top temperature collected and waste gas
Temperature sends to oxygen regulator 2, and described oxygen regulator 2 can be transported according to the top temperature parameter of Temperature sampler collection
Calculating, obtain operation result, and send to localizer 5 according to operation result, localizer 5 adjusts oxygen regulating valve according to operation result
(localizer 5 increases or gas pressure in vent valves actuator, by film chamber by inside pressing diaphragm for the stem position of 3
Tight or loosen, and diaphragm is connected with spring film chamber within, spring is connected with valve rod again), so that oxygen content can be adjusted, adjustment
Air-fuel ratio, it is ensured that safety in production.
Certainly, the air stove that the present embodiment provides can also be external combustion stove, and air stove not only can be applied at height
On stove, provide high pathogenic wind-warm for blast furnace, it is also possible to apply on other metallurgical furnaces, provide high pathogenic wind-warm for metallurgical furnace.
The Oxygen control device that this utility model provides, the top temperature that oxygen regulator can gather according to Temperature sampler
Parameter carries out computing, sends operation result to localizer, and described localizer is then according to described location and manually adjust described oxygen
The valve rod of controlled atmosphere joint valve, can adjust oxygen content, reduces air-fuel ratio, it is ensured that safety in production；And when there being abnormal conditions, behaviour
Make personnel can directly directly quickly be cut by transmission control instruction control oxygen repid cut-off valve 11 and coal gas by computer
Disconnected valve 21, stops oxygen and the supply of coal gas, it is ensured that safety.
The above, preferred embodiment the most of the present utility model, it is not intended to limit protection of the present utility model
Scope, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, should be included in
Within protection domain of the present utility model.
Claims (10)
1. an Oxygen control device, it is characterised in that described device includes:
Temperature sampler, described Temperature sampler is arranged on air heating furnace roof, by one end phase of holding wire with oxygen regulator
Even；
Oxygen regulator, described oxygen regulator is arranged in control room, and the other end of described oxygen regulator regulates with oxygen
One end of valve is connected；
Oxygen regulating valve, described oxygen regulating valve is arranged on combustion fan, the other end of described oxygen regulating valve be used for controlling
The localizer making described oxygen regulating valve valve opening is connected.
2. device as claimed in claim 1, it is characterised in that described device also includes:
Image acquisition device, described image acquisition device is arranged in the peep-hole of described air stove；
Fire hole, one end of described fire hole is connected with one end of first sleeve；
First sleeve, described first sleeve outer cover is connected to the second sleeve pipe, is provided with cable in described first sleeve；
Monitor, described monitor is connected with described control cable by rosette.
3. device as claimed in claim 2, it is characterised in that described device also includes: nitrogen venthole, and described nitrogen is given vent to anger
Hole becomes circle distribution outside described fire hole.
4. device as claimed in claim 3, it is characterised in that described device also includes:
Nitrogen inlet, described nitrogen inlet is arranged on one end of described second sleeve pipe, and is positioned at the side of described second sleeve pipe；
Nitrogen outlet, described nitrogen inlet is arranged on one end of described second sleeve pipe, and is positioned at the opposite side of described second sleeve pipe；
Dividing plate, described dividing plate is arranged on the other end of described second sleeve pipe.
5. device as claimed in claim 4, it is characterised in that described device also includes: the 3rd sleeve pipe, described 3rd casing pipe sleeve
It is connected on the outside of described second sleeve pipe.
6. device as claimed in claim 5, it is characterised in that described device also includes:
Water-cooled entrance, described water-cooled entrance is arranged on one end of described 3rd sleeve pipe, and is positioned at the side of described 3rd sleeve pipe；
Water-cooled exports, and the outlet of described water-cooled is arranged on one end of described 3rd sleeve pipe, and is positioned at the opposite side of described 3rd sleeve pipe.
7. device as claimed in claim 1, it is characterised in that described Temperature sampler specifically includes: thermocouple.
8. device as claimed in claim 2, it is characterised in that described image acquisition device specifically includes: photographic head.
9. device as claimed in claim 1, it is characterised in that described device also includes: gas quick cut off valve, described coal gas
Repid cut-off valve is connected with the first port of the burner of described air stove.
10. device as claimed in claim 9, it is characterised in that described device also includes: oxygen repid cut-off valve, described oxygen
Gas repid cut-off valve is connected with the second port of the burner of described air stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620560341.9U CN205874471U (en) | 2016-06-08 | 2016-06-08 | Oxygen control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620560341.9U CN205874471U (en) | 2016-06-08 | 2016-06-08 | Oxygen control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205874471U true CN205874471U (en) | 2017-01-11 |
Family
ID=57690471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620560341.9U Expired - Fee Related CN205874471U (en) | 2016-06-08 | 2016-06-08 | Oxygen control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205874471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645957A (en) * | 2018-04-10 | 2018-10-12 | 合肥工业大学 | The experimental provision and experimental method of cable fire characteristic under a kind of measurement oxygen-enriched environment |
-
2016
- 2016-06-08 CN CN201620560341.9U patent/CN205874471U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645957A (en) * | 2018-04-10 | 2018-10-12 | 合肥工业大学 | The experimental provision and experimental method of cable fire characteristic under a kind of measurement oxygen-enriched environment |
| CN108645957B (en) * | 2018-04-10 | 2024-03-29 | 合肥工业大学 | Experimental device and experimental method for measuring cable combustion characteristics in oxygen-enriched environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170707 Address after: 430080 Qingshan District stock company of Hubei, Wuhan Province Patentee after: Wuhan iron and Steel Company Limited Address before: 430083 Qingshan District, Hubei, Wuhan factory before the door No. 2 Patentee before: WUHAN IRON AND STEEL CORPORATION |
|
| 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: 20170111 Termination date: 20210608 |