CN207362284U - A kind of converter mouth elementary errors pressure measuring device - Google Patents
A kind of converter mouth elementary errors pressure measuring device Download PDFInfo
- Publication number
- CN207362284U CN207362284U CN201721358931.4U CN201721358931U CN207362284U CN 207362284 U CN207362284 U CN 207362284U CN 201721358931 U CN201721358931 U CN 201721358931U CN 207362284 U CN207362284 U CN 207362284U
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- Prior art keywords
- pressure
- converter
- pipe
- flue
- measuring device
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Abstract
The utility model discloses a kind of converter mouth elementary errors pressure measuring device, belong to field of metallurgical equipment, micro-differential pressure caused by causing pressure system jams with a large amount of dust during solving the problems, such as converter smelting and slag splash measures misalignment.Device includes pressure obtaning device and blow device, pressure obtaning device is installed on converter flue, pressure obtaning device is at least two groups and is evenly distributed with along converter flue excircle, and pressure obtaning device includes pressure cylinder, short tube and reduced pipe, and blow device includes secondary pressure pipe, differential pressure transmitter and nitrogen buffer tank.The utility model reduces the susceptible to plugging problem of converter mouth differential pressure using the method that multigroup pressure and autompulse formula purge, significantly reduce the probability for smelting splash and flue dust thing blocking pressure system, when there are indivedual pressure obtaning devices blockings, also manually online dredging can be realized, improve its longtime running reliability, simple in structure, effect of removing contamination is good, dredging frequency can be once reduced to 2 years once from original 23 days.
Description
Technical field
The utility model belongs to field of metallurgical equipment, and in particular to a kind of converter mouth elementary errors pressure measuring device.
Background technology
Oxygen top-blown converter carries out coal-gas recovering using unburned method, to improve coal-gas recovering quality and the rate of recovery, reduces and turns
The pollution that producer gas leaks to environment, usually sets micro-differential pressure regulating system, is adjusted according to fire door cigarette internal mask pressure size
Two text RD high pressure check valve apertures, make pressure be maintained at ± 20Pa or so, in converter steelmaking process, molten steel splash, charging behaviour
A large amount of pyrolytic semlting metal fumeses that work and smelting process produce can cause the blocking of micro-differential pressure measurement sample tap, and then
Cause the problems such as micro-differential pressure measurement misalignment, automatic control system can not put into operation, sample tap maintenance dredging is difficult.
Have in the prior art by the way of nitrogen purging, but the directly opening welding pressure pipeline on converter mouth flue
Mode in smelting process easily by the impurity such as converter slag, dust block, taken even if being also difficult to ensure that using nitrogen blowback
Sample mouth it is unobstructed；Sample tap is manually dredged at this time, and sample tap environment, which is in high-temperature area, can not meet that converter continuous production measures
Demand, and operation is dangerous high, and labor intensity is big；Also there is the mode that sample tap is dredged in the timing of nitrogen cleansing pin, due to
The literary coal gas high-temperature radiant heat of converter steelmaking process one makes that nitrogen cleansing pin installation environment temperature is higher, and cleansing pin cylinder rubber seal is old
Change damage quickly, while maintenance to cleansing pin, installation and later stage, to replace maintenance cost higher；Also have using raising sample point position
Put, the method for 3 ways of measure pressure, electromagnetism valve timing blowback nitrogen and double transmitters measurement, due to continuous purging nitrogen purging power
Degree is smaller, it is difficult to and solve a large amount of high temperature viscometrics spray slags of converter steelmaking process and metallic dust attaches the practical problem of sample tap, it is right
Tamper elimination effect is poor.
Utility model content
The purpose of this utility model is to provide a kind of converter mouth elementary errors pressure measuring device, to solve the converter smelting phase
Between a large amount of dust and slag splash cause pressure system jams caused by micro-differential pressure measurement misalignment the problem of.
In order to solve problem above, technical solutions of the utility model are：
A kind of converter mouth elementary errors pressure measuring device, including pressure obtaning device and blow device, pressure obtaning device are installed on converter
On flue, pressure obtaning device is at least two groups and is evenly distributed with along converter flue excircle, and pressure obtaning device includes pressure cylinder, short tube and reducing
Pipe, pressure cylinder are tiltedly mounted on converter flue along gas flow, and short tube one end is installed on pressure cylinder, the connection of the short tube other end
Reduced pipe, short tube are parallel with converter flue；At least two reduced pipes are connected with pressure jointly by a corresponding pressure pipe
Endless tube, pressure endless tube connection blow device, blow device include secondary pressure pipe, differential pressure transmitter and nitrogen buffer tank, pressure
Secondary pressure measuring valve is equipped between endless tube and secondary pressure pipe, differential pressure transmitter and nitrogen buffer tank are each provided on secondary pressure pipe.
Further, pressure solenoid valve is equipped between differential pressure transmitter and secondary pressure pipe, nitrogen buffer tank takes with secondary
It is equipped with blowback solenoid valve between pressure pipe, the input terminal of pressure solenoid valve and blowback solenoid valve is connected with the output terminal of PLC, PLC's
Input terminal is connected with Converter Oxigen Blowing system.
Further, a pressure pipe is tilted along gas flow, tilt angle alpha 5o-10o.
Further, pressure cylinder is 40o along gas flow angle of inclination δ.
Further, pressure obtaning device is evenly distributed with for four groups along converter flue excircle, and the phase angle β between adjacent pressure cylinder is
90º。
Further, pressure cylinder end and reduced pipe top are equipped with movable pressure cap.
The utility model or have the beneficial effect that：The side that the utility model is purged using multigroup pressure and autompulse formula
Method reduces the susceptible to plugging problem of converter mouth differential pressure, significantly reduces smelting splash and flue dust thing blocks the several of pressure system
Being obliquely installed for rate, pressure cylinder and pressure pipe, facilitates tamper to flow back, and when indivedual pressure obtaning devices occur and blocking, also can
Enough realize manually online dredging, improve its longtime running reliability, it is simple in structure, it is easy to maintain, hardly use and replace component,
Later maintenance cost is relatively low, and purging effort is big, and effect of removing contamination is good, dredging frequency can be once reduced to 2 from original 2-3 days
Year is once.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of converter mouth elementary errors pressure measuring device；
Fig. 2 is a kind of A-A faces profile of converter mouth elementary errors pressure measuring device.
Reference numeral is as follows：1st, converter flue；2nd, pressure cylinder；3rd, short tube；4th, reduced pipe；5th, a pressure pipe；6th, pressure
Endless tube；7th, movable pressure cap；8th, secondary pressure measuring valve；9th, secondary pressure pipe；10th, pressure solenoid valve；11st, differential pressure transmitter；12nd, blowback
Solenoid valve；13rd, nitrogen buffer tank；14、PLC；15th, Converter Oxigen Blowing system.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1
A kind of converter mouth elementary errors pressure measuring device as shown in Figs. 1-2, the pressure obtaning device are installed on converter flue 1
On, pressure obtaning device is at least two groups and is evenly distributed with along 1 excircle of converter flue, and in the present embodiment, pressure obtaning device is for four groups along converter cigarette
1 excircle of road is evenly distributed with, and the phase angle β between adjacent pressure cylinder 2 is 90o, and pressure obtaning device includes pressure cylinder 2, short tube 3 and reduced pipe
4,2 end of pressure cylinder and 4 top of reduced pipe are equipped with movable pressure cap 7, and pressure cylinder 2 is tiltedly mounted on converter flue along gas flow
On 1, pressure cylinder 2 is 40o along gas flow angle of inclination δ, and 3 one end of short tube is installed on pressure cylinder 2, the connection of 3 other end of short tube
Reduced pipe 4, short tube 3 are parallel with converter flue 1；At least two reduced pipes 4 are connected with jointly by a corresponding pressure pipe 5
Pressure endless tube 6, one time pressure pipe 5 is tilted along gas flow, tilt angle alpha 10o, and pressure endless tube 6 connects blow device, purging
Device includes secondary pressure pipe 9, differential pressure transmitter 11 and nitrogen buffer tank 13, is equipped between pressure endless tube 6 and secondary pressure pipe 9
Secondary pressure measuring valve 8, differential pressure transmitter 11 and nitrogen buffer tank 13 are each provided on secondary pressure pipe 9, differential pressure transmitter 11 with it is secondary
Pressure solenoid valve 10 is equipped between pressure pipe 9, blowback solenoid valve 12 is equipped between nitrogen buffer tank 13 and secondary pressure pipe 9, is taken
The input terminal of pressure electromagnetic valve 10 and blowback solenoid valve 12 is connected with the output terminal of PLC, and the input terminal of PLC is connected with Converter Oxigen Blowing system
System 15.
During operation, coal gas enters short tube 3 and reduced pipe 4 along converter flue uplink, by pressure cylinder 2, the converter smelting phase
A large amount of dust and slag splash stop once at pressure cylinder 2, carry out secondary stop in short tube 3 again；Pressure in present embodiment
Device sets 4 groups, and 4 point pressures got are entered pressure endless tube 6 by a corresponding pressure pipe 5 presses, and enters back into afterwards
Secondary pressure pipe 9, finally to differential pressure transmitter 11, measures differential pressure, can prevent some pressure point from blocking to influence measurement accuracy,
It can be acted on again by the pressure of pressure endless tube 6 and eliminate influence of the micro-differential pressure frequent fluctuation to measurement in converter steelmaking process.
In operation process, Converter Oxigen Blowing signal that PLC is received, output signal control pressure solenoid valve 10 and blowback electromagnetism
The folding of valve 12, when converter starts oxygen blast, pressure solenoid valve 10 is opened, and blowback solenoid valve 12 is closed, and stops nitrogen purging, poor
Pressure transmitter 11 carries out differential pressure measurement, and signal is sent to PLC after Converter Oxigen Blowing, PLC control differential pressure transmitters 11 continue into
Row pressure measurement 2min, controls pressure solenoid valve 10 to close, blowback solenoid valve 12 is opened, with 2S intervals to secondary pressure pipe afterwards
9th, 6, pressure pipes 5 of pressure endless tube and pressure obtaning device carry out pulsed purging, and the Converter Oxigen Blowing signal received with PLC controls
The folding of pressure solenoid valve 10 and blowback solenoid valve 12, until next time, smelting started, so circulation.
Once pressure internal system has the blocking of solid foul, nitrogen sweep gas source, hand can be closed smelting tempus intercalare
It is dynamic to pull down movable pressure cap 7, reduced pipe 4 and the inside of pressure cylinder 2 are manually dredged respectively using drill rod.
Dredging frequency can be once reduced to 2 years once by the utility model from original 2-3 days.
Embodiment 2
Difference from Example 1 is that pressure obtaning device is evenly distributed with for six groups along 1 excircle of converter flue, adjacent pressure cylinder 2
Between phase angle β be 60o, one time pressure pipe 5 is tilted along gas flow, tilt angle alpha 10o.
Embodiment 2
Difference from Example 1 is that one time pressure pipe 5 is tilted along gas flow, tilt angle alpha 7.5o.
Claims (6)
1. a kind of converter mouth elementary errors pressure measuring device, including pressure obtaning device and blow device, the pressure obtaning device, which is installed on, to be turned
Stove flue（1）On, it is characterised in that：Pressure obtaning device is at least two groups along converter flue（1）Excircle is evenly distributed with, and pressure obtaning device includes
Pressure cylinder（2）, short tube（3）And reduced pipe（4）, the pressure cylinder（2）Converter flue is tiltedly mounted on along gas flow（1）On,
The short tube（3）One end is installed on pressure cylinder（2）On, the short tube（3）The other end connects reduced pipe（4）, the short tube（3）With
Converter flue（1）It is parallel；At least two reduced pipes（4）Pass through a corresponding pressure pipe（5）Pressure endless tube is connected with jointly
（6）, the pressure endless tube（6）Blow device is connected, the blow device includes secondary pressure pipe（9）, differential pressure transmitter（11）
And nitrogen buffer tank（13）, the pressure endless tube（6）With secondary pressure pipe（9）Between be equipped with secondary pressure measuring valve（8）, the differential pressure
Transmitter（11）And nitrogen buffer tank（13）It is each provided at secondary pressure pipe（9）On.
A kind of 2. converter mouth elementary errors pressure measuring device as claimed in claim 1, it is characterised in that：The differential pressure transmitter
（11）With secondary pressure pipe（9）Between be equipped with pressure solenoid valve（10）, the nitrogen buffer tank（13）With secondary pressure pipe（9）It
Between be equipped with blowback solenoid valve（12）, the pressure solenoid valve（10）With blowback solenoid valve（12）Input terminal be connected with PLC（14）
Output terminal, PLC（14）Input terminal be connected with Converter Oxigen Blowing system（15）.
A kind of 3. converter mouth elementary errors pressure measuring device as claimed in claim 1 or 2, it is characterised in that：Pressure
Pipe（5）Tilted along gas flow, tilt angle alpha 5o-10o.
A kind of 4. converter mouth elementary errors pressure measuring device as claimed in claim 3, it is characterised in that：The pressure cylinder（2）Edge
Gas flow angle of inclination is 40o.
A kind of 5. converter mouth elementary errors pressure measuring device as claimed in claim 4, it is characterised in that：The pressure obtaning device is four
Group is along converter flue（1）Excircle is evenly distributed with, adjacent pressure cylinder（2）Between phase angle β be 90o.
A kind of 6. converter mouth elementary errors pressure measuring device as claimed in claim 5, it is characterised in that：The pressure cylinder（2）End
End and reduced pipe（4）Top is equipped with movable pressure cap（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358931.4U CN207362284U (en) | 2017-10-20 | 2017-10-20 | A kind of converter mouth elementary errors pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358931.4U CN207362284U (en) | 2017-10-20 | 2017-10-20 | A kind of converter mouth elementary errors pressure measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207362284U true CN207362284U (en) | 2018-05-15 |
Family
ID=62419806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721358931.4U Expired - Fee Related CN207362284U (en) | 2017-10-20 | 2017-10-20 | A kind of converter mouth elementary errors pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207362284U (en) |
-
2017
- 2017-10-20 CN CN201721358931.4U patent/CN207362284U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 Termination date: 20181020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |