CN205974570U - Controlling means is pressed to fire door elementary errors in converter flue gas dry process dust pelletizing system - Google Patents
Controlling means is pressed to fire door elementary errors in converter flue gas dry process dust pelletizing system Download PDFInfo
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- CN205974570U CN205974570U CN201620590296.1U CN201620590296U CN205974570U CN 205974570 U CN205974570 U CN 205974570U CN 201620590296 U CN201620590296 U CN 201620590296U CN 205974570 U CN205974570 U CN 205974570U
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Abstract
The utility model provides a controlling means is pressed to fire door elementary errors in converter flue gas dry process dust pelletizing system, its characterized in that: the fire door elementary errors presses controlling means to put pneumatic cabinet, louver valve device, central controller including getting the pressure equipment. The utility model discloses a carrying out small transformation in current evaporative cooling flue structure, not influencing the original flue gas pipeline and use, the transformation cycle is short, invest in for a short time, and the fault rate is low, and the monitoring degree of accuracy is high, can obviously improve gas cleaning efficiency, prevents the emergence of the high concentration soot emissions condition, the utility model discloses transformation to converter dry process dust pelletizing system has the significance, is suitable for very much the practicality.
Description
Technical field
This utility model is related to a kind of dust pelletizing system of converter gas, is specifically designed a kind of converter gas dry-dedusting system
Middle micro-differential pressure control device.
Background technology
A large amount of high temperature furnace slags can be produced in converter steelmaking process, due to the uneven feature of flue gas flow in smelting process,
Lead in flue, there is pressure reduction change.Steelmaking process needs maintain fire door pressure-fired (gauge pressure：0-5pa), prevent stove
Burn with anger phenomenon and the excessive phenomenon generation sucking large quantity of air of fire door negative pressure of the mouth excessive generation of malleation.
The temperature of these flue gases that can produce in converter steelmaking process may be up to 1450-1600 DEG C, containing substantial amounts of sensible heat,
The dustiness of flue gas may be up to 150g/m3, smelting middle and late stage, in flue gas, the content of CO up to more than 50% is it might even be possible to reach
To 80%.CO is the clean energy resource of very high-quality, if be unable to high efficiente callback utilized, can cause the significant wastage of the energy.Converter
In smelting process, if fire door negative pressure is excessive, large quantity of air can be led to be inhaled in flue, lead to high-quality clean energy resource CO by oxygen
Turn to CO2, and substantial amounts of SO can be produced2, both wasted the energy, also created serious atmospheric pollution.If fire door malleation is excessive,
High-temperature flue gas flow velocity then can be led to accelerate, lead to recovery utilization rate to reduce, be unfavorable for the recycling of high-temperature flue gas, also can cause
Burn with anger phenomenon, produce potential safety hazard.
In prior art, because the pressure pipe of fire door pressure measurement is directly installed on converter mouth, the opening easily quilt of pressure pipe
High temperature furnace slag blocks, and equipment failure rate is very high.For this reason, the pressure-measuring pipe of some converter mouths is arranged on certain distance above fire door
Place although making the fault rate of equipment make moderate progress, but due to there is a certain distance between pressure tappings and fire door, so can not be accurate
Really monitor the pressure value of fire door.In addition, existing pressure monitoring devices complex structure, the transformation cycle is long, and investment is huge.
Utility model content
The purpose of this utility model is to provide micro-differential pressure control device in a kind of converter gas dry-dedusting system,
Improve the problem that prior art exists, improve the accuracy of micro-differential pressure control device detection, reduce the fault rate of equipment, control
The Recovery Purifying effect to high-temperature flue gas for the system.
In the described dry-dedusting system for converter gas, micro-differential pressure control device includes pressure obtaning device I, Pneumatic cabinet
II, central controller III, BAIYE valve gear IV；Pressure obtaning device I on gasification cooling flue 1, the other end and Pneumatic cabinet II phase
Even, Pneumatic cabinet II connects central controller III, and central controller III connects BAIYE valve gear IV, and BAIYE valve gear IV is connected to dry
On the pipeline of method dust pelletizing system outlet 2, wherein：
Described pressure obtaning device I includes pressure tappings 11, pressure endless tube 12, impulse piping 13；Described pressure tappings 11 are connected to vapour
Change on cooling stack 1, described pressure endless tube 12 connects pressure tappings 11, described impulse piping 13 connects pressure endless tube 12；
Described Pneumatic cabinet II includes pilot house steward 21, differential pressure transmitter 22, manometer tube 23, pressure electromagnetic valve 24, diffuses electricity
Magnet valve 25；Described pilot house steward 21 one end is connected to impulse piping 13, the other end and pressure electromagnetic valve 24, diffuse electromagnetic valve 25,
Differential pressure transmitter 22 connects；Described pressure electromagnetic valve 24 is connected with differential pressure transmitter 22；Described diffuse electromagnetic valve 25 connect diffuse
Valve 28；Described differential pressure transmitter 22 connects pilot house steward 21, and the other end of pilot house steward 21 connects pressure tappings 11；
Described central controller III includes 1/0 network substation 31, network controller 32, network substation 33；Described 1/0 network
Substation 31 is connected to the differential pressure transmitter 22 of Pneumatic cabinet II, pressure electromagnetic valve 24 by cable and diffuses on electromagnetic valve 25, described
Network controller 32, network substation 33 are sequentially connected with 1/0 network substation 31；
Described BAIYE valve gear IV includes servo-driver 41, servomotor 42, louver valve 43；Described servo-driver 41
Be connected with network substation 33 by paired shield cable, described servomotor 42, louver valve 43 pass through power cable sequentially with watch
Take driver 41 to connect, described louver valve 43 is connected on the pipeline of dry-dedusting system outlet 2.
It is preferred that described micro-differential pressure control device also includes dregs breaking device V, described dregs breaking device V includes break
Device 51；Described broken slag device 51 one end and pressure tappings 11, pressure endless tube 12 are connected, and the other end is connected with described manometer tube 23；
Described Pneumatic cabinet II also includes break electromagnetic valve 27, for controlling broken slag device 51 action；Described break electromagnetic valve 27 one end and pressure
Solenoid 23 connects, and the other end is connected with differential pressure transmitter 22；Described break electromagnetic valve 27 passes through cable and central controller III
I/O network substation 31 is connected.
It is preferred that on each wherein said broken slag device 51, proximity switch 52 and airway 53 be installed, airway 53 with
Proximity switch 52 is connected respectively to Pneumatic cabinet II by signal, and described broken slag device 51 is connected with pressure tappings 11 by flange 55, method
Connect connecting pipe pipe nipple 54 on blue 55, be connected to afterwards on pressure endless tube 12.
It is preferred that described Pneumatic cabinet II also includes purge solenoid valve 26, for controlling purging action, described purge solenoid valve
16 one end are connected to impulse piping 13 by pilot house steward 21, and the other end connects inlet manifold 29 and differential pressure transmitter 22, described
Purge solenoid valve 26 is connected with I/O network substation 31 by cable.
It is preferred that described pressure tappings 11 are located at the inclined tube section of gasification cooling flue 1.
It is preferred that wherein said network controller 32 is connected using super Category-5 twisted pair with I/O network substation 31, network
It is connected by fieldbus between controller 32 and network substation 33, pass through fieldbus between two network substations 33 and be connected.
It is preferred that each network substation 33 is connected with two servo-drivers 41, by the way of series winding, using multiple twin screen
Cover cable communication line to connect.
This utility model increases pressure tappings 11 and broken slag device 51 on gasification cooling flue 1, increases at house outlet
The mode of louver valve 43, compares the common valve of former house outlet, and this utility model has clear advantage and beneficial effect:
1st, this utility model can utilize the system structure of original dry method dust, is changed for existing dry-dedusting system
Make, transform cycle is short, small investment, need not additionally increase floor space.In addition, this utility model is in micro-differential pressure control device
In be provided with break equipment and purger, and Based Intelligent Control is realized to it by central controller IV so that the fault of equipment
Rate substantially reduces, the accuracy lifting of monitoring, controls rapid.
2nd, this utility model, according to fire door flue gas pressures real-time regulation BAIYE valve opening, adjusts flue gas flow rate in cleaner unit steady
Determine, it is ensured that clean-up effect, the situation that row flue gas occurs when reclaiming and relay scattered can also be avoided simultaneously.
3rd, this utility model does not additionally produce powdery dust, can avoid secondary pollution.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, can be practiced according to the content of description, and in order to allow above and other purpose of the present utility model, feature and
Advantage can become apparent, and below especially exemplified by preferred embodiment, and coordinates accompanying drawing, describes in detail as follows.
Brief description
Fig. 1 is the process chart being applied to micro-differential pressure control device in converter gas dry-dedusting system；
Fig. 2 is the pressure obtaning device I of micro-differential pressure control device and the structural representation of dregs breaking device V；
Fig. 3 is the A direction view of Fig. 2；
Fig. 4 is Pneumatic cabinet II schematic diagram of micro-differential pressure control device；
Fig. 5 is central controller III schematic diagram of micro-differential pressure control device；
Fig. 6 is BAIYE valve gear IV schematic diagram of micro-differential pressure control device.
Specific embodiment
Embodiment one：
This utility model provides one kind and is used for micro-differential pressure control device in converter gas dry-dedusting system, including
Pressure obtaning device I, Pneumatic cabinet II, central controller III, BAIYE valve gear IV；Pressure obtaning device I on gasification cooling flue 1, separately
One end is connected with Pneumatic cabinet II, and Pneumatic cabinet II connects central controller III, and central controller III connects BAIYE valve gear IV, BAIYE
Valve gear IV is connected on the pipeline of dry-dedusting system outlet 2, wherein：
Described pressure obtaning device I includes pressure tappings 11, pressure endless tube 12, impulse piping 13；Described pressure tappings 11 are connected to vapour
Change on cooling stack 1, described pressure endless tube 12 connects pressure tappings 11, described impulse piping 13 connects pressure endless tube 12；
Described Pneumatic cabinet II includes pilot house steward 21, differential pressure transmitter 22, manometer tube 23, pressure electromagnetic valve 24, diffuses electricity
Magnet valve 25；Described pilot house steward 21 one end is connected to impulse piping 13, the other end and pressure electromagnetic valve 24, diffuse electromagnetic valve 25,
Differential pressure transmitter 22 connects；Described pressure electromagnetic valve 24 is connected with differential pressure transmitter 22；Described diffuse electromagnetic valve 25 connect diffuse
Valve 28；Described differential pressure transmitter 22 connects pilot house steward 21, and the other end of pilot house steward 21 connects pressure tappings 11；
Described central controller III includes 1/0 network substation 31, network controller 32, network substation 33；Described 1/0 network
Substation 31 is connected to the differential pressure transmitter 22 of Pneumatic cabinet II, pressure electromagnetic valve 24 by cable and diffuses on electromagnetic valve 25, described
Network controller 32, network substation 33 are sequentially connected with 1/0 network substation 31；
Described BAIYE valve gear IV includes servo-driver 41, servomotor 42, louver valve 43；Described servo-driver 41
Be connected with network substation 33 by paired shield cable, described servomotor 42, louver valve 43 pass through power cable sequentially with watch
Take driver 41 to connect, described louver valve 43 is connected on the pipeline of dry-dedusting system outlet 2.
Wherein said network controller 32 is connected using super Category-5 twisted pair with I/O network substation 31, network controller
It is connected by fieldbus between 32 with network substation 33, pass through fieldbus between two network substations 33 and be connected.
Each network substation 33 is connected with two servo-drivers 41, by the way of series winding, using paired shield cable
Connection connects.
The method controlling micro-differential pressure in converter gas dry-dedusting system, operating procedure is as follows：
(1) central controller III has persistently detected whether blowing signal；
(2) blowing signal sends, and pressure electromagnetic valve 24 is opened, and pressure tappings 11 are to fire door converter gas pressure, pressure flue gas
Sequentially enter pressure endless tube 12, impulse piping 13；
(3) pressure flue gas passes through impulse piping 13, pilot house steward 21 enters differential pressure transmitter 22, and differential pressure transmitter 22 will be examined
The real-time fire door pressure measuring is sent to network controller 32 through I/O network substation 31, after via controller computing, exports louver valve
Opening value, is delivered to network substation 33, and signal is sequentially transmitted servo-driver 41, servomotor 42 by network substation 33, watches
Taking motor 42 finally drives louver valve 43 to be opened to predetermined opening value, realizes the adjustment to fire door pressure；
(4) central controller III has persistently detected whether blowing signal, if there being blowing signal, circulation step (2) to (3)；
If blowing signal ended, pressure electromagnetic valve 24 cuts out, and diffuses electromagnetic valve 25 and opens, and diffuses valve 28 and opens, central controller III
Detection is diffused and is completed, and diffuses electromagnetic valve 25 and closes, diffuses valve 28 and close.
Embodiment two：
Embodiment two provides one kind for micro-differential pressure control device in converter gas dry-dedusting system, with enforcement
The difference of example one is in the present embodiment, and micro-differential pressure control device also includes dregs breaking device V, and dregs breaking device V wraps
Include broken slag device 51；Broken slag device 51 one end is connected with pressure tappings 11, pressure endless tube 12, and the other end is with described manometer tube 23 even
Connect；Pneumatic cabinet II also includes break electromagnetic valve 27, for controlling broken slag device 51 action；Break electromagnetic valve 27 one end and manometer tube 23
Connect, the other end is connected with differential pressure transmitter 22；Break electromagnetic valve 27 passes through the I/O network substation of cable and central controller III
31 are connected.On each broken slag device 51, proximity switch 52 and airway 53 are installed, airway 53 passes through signal with proximity switch 52
It is connected respectively to Pneumatic cabinet II, broken slag device 51 is connected with pressure tappings 11 by flange 55, flange 55 connects connecting pipe pipe nipple 54,
It is connected to afterwards on pressure endless tube 12.
Embodiment two also provides a kind of method controlling micro-differential pressure in converter gas dry-dedusting system, operation step
The rapid difference with embodiment one is：Increased break action on the basis of embodiment one, concrete grammar is as follows：
With embodiment one, in step (4), after blowing signal ended is detected, pressure electromagnetic valve 24 cuts out other steps,
Break electromagnetic valve 27 is opened, and broken slag device 51 carries out break action, and central controller III detection break action completes, and closes break electricity
Magnet valve 27, opens and diffuses electromagnetic valve 25, diffuse valve 28 and open, and central controller III detection is diffused and completed, and diffuses electromagnetic valve 25
Close, diffuse valve 28 and close.
Embodiment three
Embodiment three provides one kind for micro-differential pressure control device in converter gas dry-dedusting system, with enforcement
The difference of example two is in the present embodiment, and Pneumatic cabinet II also includes purge solenoid valve 26, for controlling purging action, described
Purge solenoid valve 16 one end is connected to impulse piping 13 by pilot house steward 21, and the other end connects inlet manifold 29 and differential pressure transporting
Device 22, described purge solenoid valve 26 is connected with I/O network substation 31 by cable.
Embodiment three also provides a kind of method controlling micro-differential pressure in converter gas dry-dedusting system, operation step
The rapid difference with embodiment two is：Increased purging action on the basis of embodiment two, concrete grammar is as follows：
With embodiment one, in step 4, if blowing signal ended is detected, pressure electromagnetic valve 24 cuts out other steps, breaks
Slag electromagnetic valve 27 is opened, and broken slag device 51 carries out break action, and central controller III detection break action completes, and closes break electromagnetism
Valve 27, purge solenoid valve 26 is opened, and purging action is carried out, and central controller III detection purging action completes, purge solenoid valve 26
Close, diffuse electromagnetic valve 25 and open, diffuse valve 28 and open, central controller III detection is diffused and completed, and diffuses electromagnetic valve 25 and closes
Close, diffuse valve 28 and close.
Compare the common valve of former house outlet, this utility model is transformed for existing dry-dedusting system,
Transformation cycle is short, small investment, need not additionally increase floor space.This utility model is provided with micro-differential pressure control device
Break equipment and purger, and Based Intelligent Control is realized to it so that the fault rate of equipment drops significantly by central controller IV
Low, the accuracy lifting of monitoring, control rapid.By real-time regulation BAIYE valve opening, flue gas flow rate in adjustment cleaner unit in time,
Control stable flow velocity it is ensured that gas cleaning effect and organic efficiency, can also avoid that cigarette occurs when recovery relays scattered simultaneously
The situation of row outside gas.
The above, be only preferred embodiment of the present utility model, not this utility model is made any formal
Restriction although this utility model is disclosed above with preferred embodiment, but be not limited to this utility model.Any ripe
Know professional and technical personnel, in the range of without departing from technical solutions of the utility model, when in the technology of available the disclosure above
Hold and make a little Equivalent embodiments changing or be modified to equivalent variations, as long as without departing from technical solutions of the utility model
Hold, any simple modification, equivalent variations and modification above example made according to technical spirit of the present utility model, all still
Belong in the range of technical solutions of the utility model.
Claims (7)
1. a kind of for micro-differential pressure control device in converter gas dry-dedusting system it is characterised in that：Described fire door is micro-
Difference pressure control device includes pressure obtaning device (I), Pneumatic cabinet (II), central controller (III), BAIYE valve gear (IV)；Pressure obtaning device
(I) on gasification cooling flue (1), the other end is connected with Pneumatic cabinet (II), and Pneumatic cabinet (II) connects central controller (III),
Central controller (III) connects BAIYE valve gear (IV), and BAIYE valve gear (IV) is connected to the pipe of dry-dedusting system outlet (2)
On road, wherein：
Described pressure obtaning device (I) includes pressure tappings (11), pressure endless tube (12), impulse piping (13)；Described pressure tappings (11) are even
It is connected on gasification cooling flue (1), described pressure endless tube (12) connection pressure tappings (11), described impulse piping (13) connects pressure
Endless tube (12)；
Described Pneumatic cabinet (II) include pilot house steward (21), differential pressure transmitter (22), manometer tube (23), pressure electromagnetic valve (24),
Diffuse electromagnetic valve (25)；Described pilot house steward (21) one end is connected to impulse piping (13), the other end and pressure electromagnetic valve (24),
Diffuse electromagnetic valve (25), differential pressure transmitter (22) connects；Described pressure electromagnetic valve (24) is connected with differential pressure transmitter (22)；Described
Diffuse electromagnetic valve (25) connection and diffuse valve (28)；Described differential pressure transmitter (22) connects pilot house steward (21), pilot house steward
(21) the other end connects pressure tappings (11)；
Described central controller (III) includes 1/0 network substation (31), network controller (32), network substation (33)；Described 1/0
Network substation (31) is connected to the differential pressure transmitter (22) of Pneumatic cabinet (II), pressure electromagnetic valve (24) by cable and diffuses electromagnetism
On valve (25), described network controller (32), network substation (33) are sequentially connected with 1/0 network substation (31)；
Described BAIYE valve gear (IV) includes servo-driver (41), servomotor (42), louver valve (43)；Described servo-drive
Device (41) is connected with network substation (33) by paired shield cable, and described servomotor (42), louver valve (43) pass through power
Cable is sequentially connected with servo-driver (41), and described louver valve (43) is connected on the pipeline of dry-dedusting system outlet (2).
2. in converter gas dry-dedusting system according to claim 1 micro-differential pressure control device it is characterised in that:
Described micro-differential pressure control device also includes dregs breaking device (V), and described dregs breaking device (V) includes broken slag device (51)；Described
Broken slag device (51) one end is connected with pressure tappings (11), pressure endless tube (12), and the other end is connected with described manometer tube (23)；Institute
State Pneumatic cabinet (II) and also include break electromagnetic valve (27), for controlling broken slag device (51) action；Described break electromagnetic valve (27)
End is connected with manometer tube (23), and the other end is connected with differential pressure transmitter (22)；Described break electromagnetic valve (27) pass through cable with
The I/O network substation (31) of centre controller (III) is connected.
3. in converter gas dry-dedusting system according to claim 2 micro-differential pressure control device it is characterised in that:
On wherein said each broken slag device (51), proximity switch (52) and airway (53) are installed, airway (53) is opened with close
Close (52) and Pneumatic cabinet (II) is connected respectively to by signal, described broken slag device (51) passes through flange (55) with pressure tappings (11) even
Connect, flange (55) is upper to connect connecting pipe pipe nipple (54), is connected to afterwards on pressure endless tube (12).
4. in converter gas dry-dedusting system according to claim 1 micro-differential pressure control device it is characterised in that:
Described Pneumatic cabinet (II) also includes purge solenoid valve (26), and for controlling purging action, described purge solenoid valve (26) one end leads to
Cross pilot house steward (21) and be connected to impulse piping (13), the other end connects inlet manifold (29) and differential pressure transmitter (22), described
Purge solenoid valve (26) is connected with I/O network substation (31) by cable.
5. in converter gas dry-dedusting system according to claim 1 micro-differential pressure control device it is characterised in that:
Described pressure tappings (11) are located at the inclined tube section of gasification cooling flue (1).
6. in converter gas dry-dedusting system according to claim 1 micro-differential pressure control device it is characterised in that:
Wherein said network controller (32) is connected using super Category-5 twisted pair with I/O network substation (31), network controller (32)
It is connected by fieldbus between network substation (33), pass through fieldbus between two network substations (33) and be connected.
7. in converter gas dry-dedusting system according to claim 1 micro-differential pressure control device it is characterised in that:
Each network substation (33) is connected with two servo-drivers (41), by the way of series winding, is communicated using paired shield cable
Line connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620590296.1U CN205974570U (en) | 2016-06-16 | 2016-06-16 | Controlling means is pressed to fire door elementary errors in converter flue gas dry process dust pelletizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620590296.1U CN205974570U (en) | 2016-06-16 | 2016-06-16 | Controlling means is pressed to fire door elementary errors in converter flue gas dry process dust pelletizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205974570U true CN205974570U (en) | 2017-02-22 |
Family
ID=58022132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620590296.1U Withdrawn - After Issue CN205974570U (en) | 2016-06-16 | 2016-06-16 | Controlling means is pressed to fire door elementary errors in converter flue gas dry process dust pelletizing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205974570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105969933A (en) * | 2016-06-16 | 2016-09-28 | 北京博鹏北科节能环保股份有限公司 | Device and method for controlling converter mouth micro-differential pressure in converter flue gas dry dedusting system |
-
2016
- 2016-06-16 CN CN201620590296.1U patent/CN205974570U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105969933A (en) * | 2016-06-16 | 2016-09-28 | 北京博鹏北科节能环保股份有限公司 | Device and method for controlling converter mouth micro-differential pressure in converter flue gas dry dedusting system |
| CN105969933B (en) * | 2016-06-16 | 2017-11-21 | 北京博鹏北科节能环保股份有限公司 | Micro-differential pressure control device and control method in converter gas dry-dedusting system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170222 Effective date of abandoning: 20171121 |