CN207600230U - Sintering ignition furnace fuel control system - Google Patents
Sintering ignition furnace fuel control system Download PDFInfo
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- CN207600230U CN207600230U CN201721341485.6U CN201721341485U CN207600230U CN 207600230 U CN207600230 U CN 207600230U CN 201721341485 U CN201721341485 U CN 201721341485U CN 207600230 U CN207600230 U CN 207600230U
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- branch pipe
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- gas
- converter
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Abstract
The utility model discloses sintering ignition furnace Fuel Control Systems,Blast furnace gas branch pipe including connection blast furnace gas main pipe net and sintering ignition furnace,The first pneumatic control valve set gradually on blast furnace gas branch pipe,First pressure detector and first flowmeter,And it is set to several burners of sintering ignition furnace bottom,Further include PLC control system,It is connected with the total pipe network of coal gas of converter and oblique cutting enters the coal gas of converter branch pipe of blast furnace gas branch pipe,The second pneumatic control valve is disposed on coal gas of converter branch pipe,Second pressure detector and second flowmeter,Valve is both provided in the inlet of each burner of sintering ignition furnace bottom,First pneumatic control valve,First pressure detector,First flowmeter,Second pneumatic control valve,Second pressure detector,Second flowmeter and all valves are electrically connected with PLC control system.The utility model has the advantages that effectively reduce sintering ignition furnace fuel consumption, improves sintering ignition temperature and ignition results.
Description
Technical field
The utility model is related to sintering ignition furnace technical fields, and in particular to sintering ignition furnace Fuel Control System.
Background technology
Sintering ignition furnace is one of main corollary equipment of sintering plant, and sintering ignition furnace Fuel Control System is sintering ignition
The important component of stove is mainly used for providing the coal gas needed for fuel for sintering ignition furnace.Sintering ignition used at present
Stove Fuel Control System mainly includes：Connect the blast furnace gas branch pipe of blast furnace gas main pipe net and sintering ignition furnace, in blast furnace coal
Lead to the first pneumatic control valve, the first pressure that the flow direction of sintering ignition furnace is set gradually along blast furnace gas on gas branch pipe
Detector and first flowmeter and several burners for being set to sintering ignition furnace bottom.Above-mentioned sintering ignition furnace fuel control
System has the following disadvantages：Always using the blast furnace gas of low heat value as sintering ignition furnace fuel（Blast furnace gas calorific value is about
For 3000-3300KJ）, cause sintering ignition furnace fuel consumption high, sintering ignition temperature is low, ignition results are poor, causes the rate of return mine
And solid fuel consumption is higher.
Utility model content
The purpose of this utility model be to provide it is a kind of can effectively reduce sintering ignition furnace fuel consumption, improve sintering ignition temperature
The sintering ignition furnace Fuel Control System of degree and ignition results.
To achieve the above object, the utility model employs following technical solution：The sintering ignition furnace fuel control
System, including connection blast furnace gas main pipe net and sintering ignition furnace blast furnace gas branch pipe, on blast furnace gas branch pipe along height
The first pneumatic control valve that the flow direction that producer gas leads to sintering ignition furnace is set gradually, first pressure detector and first-class
Gauge and several burners for being set to sintering ignition furnace bottom, further include PLC control system, with the total pipe network phase of coal gas of converter
Connection and oblique cutting enter the coal gas of converter branch pipe of blast furnace gas branch pipe, lead to weld point along coal gas of converter on coal gas of converter branch pipe
The flow direction of stove is disposed with the second pneumatic control valve, second pressure detector and second flowmeter, in sintering ignition
The inlet of each burner of furnace bottom is both provided with valve, first pneumatic control valve, first pressure detector, first-class
Gauge, the second pneumatic control valve, second pressure detector, second flowmeter and all valves are electrically connected with PLC control system,
When PLC control system obtains the pipeline pressure of blast furnace gas branch pipe according to each pipeline pressure comparative analysis that each pressure detecting instrument acquires
When power is less than the pipeline pressure of coal gas of converter branch pipe, PLC control system can be automatically controlled on coal gas of converter branch pipe second pneumatic
The pipeline pressure adjustment of coal gas of converter branch pipe is reduced to and matches with the pipeline pressure of blast furnace gas branch pipe, works as PLC by regulating valve
The pipeline pressure that control system obtains blast furnace gas branch pipe according to each pipeline pressure comparative analysis that each pressure detecting instrument acquires is high
When the pipeline pressure of coal gas of converter branch pipe, PLC control system can automatically control the first pneumatic adjusting on blast furnace gas branch pipe
The pipeline pressure adjustment of blast furnace gas branch pipe is reduced to and matches with the pipeline pressure of coal gas of converter branch pipe by valve；And PLC is controlled
System processed can analyze mixed gas according to each pipeline flow that each flowmeter acquires with the calorific value calculation of coal gas in corresponding pipeline
Real-time calorific value, when the real-time calorific value of mixed gas side every up to 3000~6100 kJ (kilojoule)s, PLC control system is by controlling each burner
Valve and make burner open quantity account for the 70~100% of burner total quantity.
Further, aforementioned sintering ignition furnace Fuel Control System, wherein：Blast furnace before the first pneumatic control valve valve
The third pressure for detecting the first pneumatic control valve upstream pressure and being electrically connected with PLC control system is provided on branch gas tube
Detector.
Further, aforementioned sintering ignition furnace Fuel Control System, wherein：Converter before the second pneumatic control valve valve
The 4th pressure for detecting the second pneumatic control valve upstream pressure and being electrically connected with PLC control system is provided on branch gas tube
Detector.
Further, aforementioned sintering ignition furnace Fuel Control System, wherein：In blast furnace gas branch pipe and coal gas of converter branch
It is both provided on pipe and is electrically connected electric blind plate valve with PLC control system.
Further, aforementioned sintering ignition furnace Fuel Control System, wherein：Coal gas of converter branch pipe includes：Connect converter
The straight pipe of gas main net and the inclined tube section of connection straight pipe and blast furnace gas branch pipe, axis and the height of the inclined tube section
Angle between the axis of producer gas branch pipe is 45 °.
Through the implementation of the above technical solution, the beneficial effects of the utility model are：（1）It introduces in the total pipe network of coal gas of converter
The high heating value coal gas of converter that calorific value is about 6000KJ is made after the coal gas of converter of high heating value is mixed with the blast furnace gas of low heat value
For fuel needed for sintering ignition furnace, sintering ignition furnace fuel consumption is greatly reduced, sintering ignition furnace fuel consumption has dropped
15%, sintering ignition temperature and ignition results are improved, sintering ignition temperature improves 50~100 DEG C, reduces the rate of return mine and consolidates
Fluid fuel consumes；（2）Online pressure monitoring and control are carried out by the pipeline pressure to blast furnace gas branch pipe and coal gas of converter branch pipe
System is adjusted, and is made blast furnace gas that can be mixed always with same pressure with coal gas of converter and is sent to sintering ignition furnace, avoids because of blast furnace gas
Pour in down a chimney the generation of phenomenon caused by pressure and coal gas of converter pressure unmatched, efficiently solve the total pipe network pressure wave of coal gas of converter
The dynamic influence to sintering production；（3）By enter sintering ignition furnace mixed gas real-time calorific value to burner open quantity into
The real-time adjusting control of row, ensure that the final fuel effect of fuel.
Description of the drawings
Fig. 1 is the principle schematic diagram of sintering ignition furnace Fuel Control System described in the utility model.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, the sintering ignition furnace Fuel Control System, including PLC control system 1, connection blast furnace gas
The blast furnace gas branch pipe 4 of total pipe network 2 and sintering ignition furnace 3 leads to sintering ignition on blast furnace gas branch pipe 4 along blast furnace gas
The first pneumatic control valve 5, first pressure detector 6 and the first flowmeter 7 and setting that the flow direction of stove 3 is set gradually
Several burners 8 in 3 bottom of sintering ignition furnace, further include that pipe network 9 total with coal gas of converter is connected and oblique cutting enters blast furnace gas branch
The coal gas of converter branch pipe 10 of pipe 4, lead on coal gas of converter branch pipe 10 along coal gas of converter the flow direction of sintering ignition furnace 3 according to
It is secondary to be provided with the second pneumatic control valve 11, second pressure detector 12 and second flowmeter 13, in the every of 3 bottom of sintering ignition furnace
The inlet of a burner 8 is both provided with valve 14, first pneumatic control valve 5, first pressure detector 6, first flowmeter
7th, the second pneumatic control valve 11, second pressure detector 12, second flowmeter 13 and all valves 14 with PLC control system 1
Electrical connection, when PLC control system 1 obtains blast furnace gas branch pipe according to each pipeline pressure comparative analysis that each pressure detecting instrument acquires
When 4 pipeline pressure is less than the pipeline pressure of coal gas of converter branch pipe 10, PLC control system 1 can automatically control coal gas of converter branch pipe
The pipeline pressure adjustment of coal gas of converter branch pipe 10 is reduced to and blast furnace gas branch pipe 4 by the second pneumatic control valve 11 on 10
Pipeline pressure matches, when PLC control system 1 obtains blast furnace according to each pipeline pressure comparative analysis that each pressure detecting instrument acquires
When the pipeline pressure of branch gas tube 4 is higher than the pipeline pressure of coal gas of converter branch pipe 10, PLC control system 1 can automatically control blast furnace
The pipeline pressure adjustment of blast furnace gas branch pipe 4 is reduced to and coal gas of converter branch by the first pneumatic control valve 5 on branch gas tube 4
The pipeline pressure of pipe 10 matches；And PLC control system 1 can be according to each pipeline flow and corresponding pipeline that each flowmeter acquires
The calorific value calculation of middle coal gas analyzes the real-time calorific value of mixed gas, when the real-time calorific value of mixed gas is every up to 3000~6100 kJ (kilojoule)s
Fang Shi, PLC control system 1 account for the 70~100% of burner total quantity by controlling each burner valve 14 burner to be made to open quantity；
In the present embodiment, it is provided with to detect the first pneumatic adjusting on the blast furnace gas branch pipe 4 before 5 valve of the first pneumatic control valve
Valve upstream pressure and the third pressure detecting instrument 15 being electrically connected with PLC control system, before monitoring the first pneumatic control valve valve
Pressure, guarantee system operation safety that can be preferably；In the present embodiment, the converter before 11 valve of the second pneumatic control valve
For detecting 11 upstream pressure of the second pneumatic control valve and being electrically connected with PLC control system 1 is provided on branch gas tube 10
Four pressure detecting instruments 16, by monitoring the second pneumatic control valve upstream pressure, guarantee system operation safety that can be preferably；
In the present embodiment, be both provided on blast furnace gas branch pipe and coal gas of converter branch pipe be electrically connected with PLC control system 1 it is electronic blind
Plate valve 17 can improve system operation safety by electric blind plate valve；In the present embodiment, coal gas of converter branch pipe 10 includes：
Connect the straight pipe 101 of the total pipe network 9 of coal gas of converter and the inclined tube section 102 of connection straight pipe 101 and blast furnace gas branch pipe 4, institute
It is 45 ° to state the angle between the axis of inclined tube section 102 and the axis of blast furnace gas branch pipe 4, can preferably improve converter in this way
Coal gas mixes burning effect, effectively prevent pouring in down a chimney the generation of phenomenon, improves system run all right and safety；
The operation principle of the utility model is as follows：
Coal gas of converter in the total pipe network 9 of coal gas of converter is doped into blast furnace gas branch pipe 4 through coal gas of converter branch pipe 10, with blast furnace coal
Enter sintering ignition furnace 3 after blast furnace gas mixing in gas branch pipe 4, acquired when PLC control system 1 according to each pressure detecting instrument
When the pipeline pressure that each pipeline pressure comparative analysis obtains blast furnace gas branch pipe 4 is less than the pipeline pressure of coal gas of converter branch pipe 10,
PLC control system 1 can automatically control the second pneumatic control valve 11 on coal gas of converter branch pipe 10, by the pipe of coal gas of converter branch pipe 10
Road pressure adjustment is reduced to match with the pipeline pressure of blast furnace gas branch pipe 4, enables blast furnace gas with coal gas of converter with same
Pressure mixing is sent to sintering ignition furnace；When each pipeline pressure comparative analysis that PLC control system 1 is acquired according to each pressure detecting instrument
When obtaining the pipeline pressure of blast furnace gas branch pipe 4 and being higher than the pipeline pressure of coal gas of converter branch pipe 10, PLC control system 1 can be automatic
The first pneumatic control valve 5 on blast furnace gas branch pipe 4 is controlled, the pipeline pressure adjustment of blast furnace gas branch pipe 4 is reduced to turning
The pipeline pressure of producer gas branch pipe 10 matches, and makes blast furnace gas that can be mixed always with same pressure with coal gas of converter and send to sintering
Ignition furnace；And PLC control system 1 can be according to each pipeline flow that each flowmeter acquires and the calorific value meter of coal gas in corresponding pipeline
The real-time calorific value of mixed gas is precipitated in point counting, when the real-time calorific value of mixed gas side every up to 3000~6100 kJ (kilojoule)s, PLC controls system
System 1 accounts for the 70~100% of burner total quantity by controlling each burner valve 14 burner to be made to open quantity.
The utility model has the advantages that：（1）Introduce the high heating value converter that calorific value is about 6000KJ in the total pipe network of coal gas of converter
Coal gas as fuel needed for sintering ignition furnace after the coal gas of converter of high heating value is mixed with the blast furnace gas of low heat value, drops significantly
Low sintering ignition furnace fuel consumption, sintering ignition furnace fuel consumption have dropped 15%, improve sintering ignition temperature and igniting effect
Fruit, sintering ignition temperature improve 50~100 DEG C, reduce the rate of return mine and solid fuel consumption；（2）By to blast furnace gas branch
The pipeline pressure of pipe and coal gas of converter branch pipe carries out online pressure monitoring and control and regulation, makes blast furnace gas and coal gas of converter always
It can be mixed and be sent to sintering ignition furnace with same pressure, avoided because of caused by blast-furnace gas pressure and coal gas of converter pressure unmatched
Pour in down a chimney the generation of phenomenon, efficiently solve influence of the total pipe network pressure oscillation of coal gas of converter to sintering production；（3）It is burnt by entering
The real-time calorific value of the mixed gas of node stove opens quantity to burner and carries out real-time adjusting control, ensure that the final combustion of fuel
Expect effect.
Claims (6)
1. sintering ignition furnace Fuel Control System, the blast furnace gas branch including connection blast furnace gas main pipe net and sintering ignition furnace
Pipe first pneumatic is adjusted on blast furnace gas branch pipe along what blast furnace gas led to that the flow direction of sintering ignition furnace sets gradually
Valve, first pressure detector and first flowmeter and several burners for being set to sintering ignition furnace bottom, it is characterised in that：
PLC control system is further included, is connected with the total pipe network of coal gas of converter and oblique cutting enters the coal gas of converter branch pipe of blast furnace gas branch pipe,
The flow direction for leading to sintering ignition furnace on coal gas of converter branch pipe along coal gas of converter is disposed with the second pneumatic control valve,
Two pressure detecting instruments and second flowmeter are both provided with valve in the inlet of each burner of sintering ignition furnace bottom, described
First pneumatic control valve, first pressure detector, first flowmeter, the second pneumatic control valve, second pressure detector, second
Gauge and all valves are electrically connected with PLC control system, when each pipeline that PLC control system is acquired according to each pressure detecting instrument
When the pipeline pressure that pressure comparison analyzes to obtain blast furnace gas branch pipe is less than the pipeline pressure of coal gas of converter branch pipe, PLC controls system
System can automatically control the second pneumatic control valve on coal gas of converter branch pipe, and the pipeline pressure adjustment of coal gas of converter branch pipe is reduced to
Match with the pipeline pressure of blast furnace gas branch pipe, when each pipeline pressure that PLC control system is acquired according to each pressure detecting instrument
When the pipeline pressure that comparative analysis obtains blast furnace gas branch pipe is higher than the pipeline pressure of coal gas of converter branch pipe, PLC control system meeting
The first pneumatic control valve on blast furnace gas branch pipe is automatically controlled, the pipeline pressure adjustment of blast furnace gas branch pipe is reduced to turning
The pipeline pressure of producer gas branch pipe matches；And PLC control system can according to each flowmeter acquire each pipeline flow with it is right
The calorific value calculation of coal gas in pipeline is answered to analyze the real-time calorific value of mixed gas, when the real-time calorific value of mixed gas is up to 3000~6,100,000
Joule per side when, PLC control system by control each burner valve make burner open quantity account for burner total quantity 70~
100%。
2. sintering ignition furnace Fuel Control System according to claim 1, it is characterised in that：In the first pneumatic control valve valve
It is provided with what is detected the first pneumatic control valve upstream pressure and be electrically connected with PLC control system on preceding blast furnace gas branch pipe
Third pressure detecting instrument.
3. sintering ignition furnace Fuel Control System according to claim 1, it is characterised in that：In the second pneumatic control valve valve
It is provided with what is detected the second pneumatic control valve upstream pressure and be electrically connected with PLC control system on preceding coal gas of converter branch pipe
4th pressure detecting instrument.
4. the sintering ignition furnace Fuel Control System according to claims 1 or 2 or 3, it is characterised in that：In blast furnace gas branch
It is both provided on pipe and coal gas of converter branch pipe and is electrically connected electric blind plate valve with PLC control system.
5. the sintering ignition furnace Fuel Control System according to claims 1 or 2 or 3, it is characterised in that：Coal gas of converter branch pipe
Including：Connect the straight pipe of the total pipe network of coal gas of converter and the inclined tube section of connection straight pipe and blast furnace gas branch pipe, the inclined tube
Angle between the axis of section and the axis of blast furnace gas branch pipe is 45 °.
6. sintering ignition furnace Fuel Control System according to claim 4, it is characterised in that：Coal gas of converter branch pipe includes：
The straight pipe of the total pipe network of coal gas of converter and the inclined tube section of connection straight pipe and blast furnace gas branch pipe are connected, the inclined tube section
Angle between the axis of axis and blast furnace gas branch pipe is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721341485.6U CN207600230U (en) | 2017-10-18 | 2017-10-18 | Sintering ignition furnace fuel control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721341485.6U CN207600230U (en) | 2017-10-18 | 2017-10-18 | Sintering ignition furnace fuel control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207600230U true CN207600230U (en) | 2018-07-10 |
Family
ID=62755671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721341485.6U Active CN207600230U (en) | 2017-10-18 | 2017-10-18 | Sintering ignition furnace fuel control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN207600230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677142A (en) * | 2017-10-18 | 2018-02-09 | 江苏永钢集团有限公司 | Sintering ignition furnace fuel control system |
| CN109631607A (en) * | 2018-11-30 | 2019-04-16 | 中国地质大学（武汉） | A kind of sintering ignition temperature intelligent control method considering gas pressure fluctuation |
-
2017
- 2017-10-18 CN CN201721341485.6U patent/CN207600230U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677142A (en) * | 2017-10-18 | 2018-02-09 | 江苏永钢集团有限公司 | Sintering ignition furnace fuel control system |
| CN109631607A (en) * | 2018-11-30 | 2019-04-16 | 中国地质大学（武汉） | A kind of sintering ignition temperature intelligent control method considering gas pressure fluctuation |
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