CN103725813A - TRT coordination control method and system - Google Patents
TRT coordination control method and system Download PDFInfo
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- CN103725813A CN103725813A CN201410001106.3A CN201410001106A CN103725813A CN 103725813 A CN103725813 A CN 103725813A CN 201410001106 A CN201410001106 A CN 201410001106A CN 103725813 A CN103725813 A CN 103725813A
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Abstract
The invention discloses a TRT (Blast Furnace Top Gas Recovery Turbine Unit) coordination control method and system. The method comprises the following steps of: collecting the top pressure signal, the furnace condition information and the gas flow signal of a blast furnace; determining the conditions of the blast furnace by a PLC (Programmable Logic Control) system according to the top pressure signal, the furnace condition information and the gas flow signal, and then carrying out step-by-step regulation control of the TRT unit. According to the invention, the automatic protection control idea of the blast furnace fault bypass is adopted, and the all-weather operation of the TRT unit is guaranteed during the running of the blast furnace through coordinating and ordered cooperation and adjustment between a stationary blade, a bypass valve and a blast furnace pressure reducing valve bank; when the top pressure of the blast furnace is higher than the predetermined value, the TRT unit does not stop; at the same time when the stationary blade of the TRT unit is under adjustment control, the bypass joins in the adjustment control to split the gas flow which is turbined through the TRT unit; therefore, the TRT unit is protected, the top pressure of the blast furnace is guaranteed to be stable and continuous power generation of the TRT unit is effective ensured.
Description
Technical field
The present invention relates to technical field of automatic control, in particular, relate to a kind of TRT control method for coordinating and system.
Background technology
TRT, full name is blast-furnace top gas recovery energy recovery turbine power generation assembly, is to utilize the furnace roof of blast furnace to discharge the blast furnace gas with certain pressure and temperature, promotes turbo-expander rotation acting, drives a kind of energy recycle device of generator generating.By the pressure energy containing in blast furnace gas and heat energy are reclaimed, reach the object of energy-conservation, noise reduction, environmental protection, there is good economic benefit and social benefit, be modern domestic, energy-saving environmental protection device that World Iron & Steel enterprise is generally acknowledged.
In traditional control mode, the grid-connected rear blast furnace top pressure of TRT is controlled by unit.When the abnormal conditions such as blast furnace generation material loading fault, because top pressure can be installed with definite value 5kPa higher than top, now the gas flow moment by TRT unit increases, and impacts TRT unit, and end thrust is excessive, when serious, can cause the serious consequences such as unit damage., owing to cannot adjusting rapidly top, press meanwhile, can cause the consequences such as blast furnace staying.In order to protect unit; at blast furnace top pressure during higher than set(ting)value 5kPa; TRT shuts down rapidly; this processing mode is simple and be unfavorable for blast furnace; because the circulating capacity of stator blade and controllability are higher than by-pass valve; shut down rear stator blade and exit top pressure adjusting, press on the more uncontrollable top of bypass, is unfavorable for very much blast furnace production.
Therefore; guarantee that TRT can round-the-clock running when operation of blast furnace; on top, press when high, TRT does not shut down, and stator blade is opened large time; bypass participates in; shunting, by the gas flow of TRT turbine, is protected unit, and assurance top is pressed stable; and guarantee that TRT continues generating, be those skilled in the art's problem demanding prompt solutions.
Summary of the invention
In view of this, the invention provides a kind of TRT control method for coordinating and system, to overcome in prior art because top pressure can be installed with definite value 5kPa higher than top, now the gas flow moment by TRT unit increases, and impacts TRT unit, and end thrust is excessive, simultaneously, cannot adjust rapidly top and press, when serious, can cause unit damage, blast furnace staying, be unfavorable for the problem of the serious consequences such as blast furnace generation.
For achieving the above object, the invention provides following technical scheme:
A TRT control method for coordinating, comprising:
Signal, working of a furnace information and gas flow signal are pressed in the top that gathers blast furnace;
By PLC Controlling System, according to described top, press signal, described working of a furnace information and described gas flow signal judgement blast furnace situation, carry out the adjusted stepwise of TRT unit and control.
Wherein, the described PLC Controlling System of passing through is pressed signal, described working of a furnace information and described gas flow signal judgement blast furnace situation according to described top, and the adjusted stepwise control of carrying out TRT unit specifically comprises:
When described working of a furnace information is normal, by described TRT unit, carry out stator blade and regulate control;
When blast furnace breaks down situation, introduce top and press by-pass valve to participate in coordinating to control.
Wherein, the top of described collection blast furnace comprises before pressing signal, working of a furnace information and gas flow signal:
Rule of thumb fault data and Theoretical Calculation combine and set up blast furnace top pressure fault experts database, according to fault type and fault degree, control by-pass valve and coordinate to control.
Wherein, described when blast furnace breaks down situation, introduce top and press by-pass valve to participate in coordinating to control specifically comprising:
Signal is pressed on the top that judges described blast furnace, determines fault type and the fault degree of described blast furnace;
When described blast furnace top pressure is during higher than set(ting)value 5kPa, introduce main by-pass valve and participate in coordinating to control to regulate to control with described stator blade coordinating to control.
Wherein, described when blast furnace breaks down situation, introduce top and press by-pass valve to participate in coordinating to control specifically also comprising:
Judge that whether described blast furnace top pressure is higher than set(ting)value 10kPa;
If so,, when described main by-pass valve is opened, secondary by-pass valve is opened rapidly default aperture, and opens rapidly according to the described top situation of pressing, and controls described blast furnace top pressure stable;
If not, judge that whether described working of a furnace information is for seriously having some setbacks;
If so, the heavy fault of described TRT unit is jumped after car, and described main by-pass valve is born top and pressed when regulating, and described secondary by-pass valve is opened rapidly default aperture, and it is stable by pressure reducing valve of blast furnace, to control described blast furnace top pressure;
If not, described TRT unit normally moves.
The invention also discloses a kind of TRT coordinated control system, comprising:
Collecting unit, presses signal, working of a furnace information and gas flow signal for gathering the top of blast furnace;
Regulation unit, for pressing signal, described working of a furnace information and described gas flow signal judgement blast furnace situation by PLC Controlling System according to described top, carries out the adjusted stepwise of TRT unit and controls.
Wherein, described regulation unit specifically comprises:
Stator blade regulation unit, regulates control for carry out stator blade by described TRT unit when described working of a furnace information is normal;
Fault accommodation control unit, for when blast furnace breaks down situation, introduces top and presses by-pass valve to participate in coordinating to control.
Wherein, before described collecting unit, also comprise:
Set up experts database unit, for rule of thumb fault data and Theoretical Calculation, combine and set up blast furnace top pressure fault experts database, according to fault type and fault degree, control by-pass valve and coordinate to control.
Wherein, described fault accommodation control unit specifically comprises:
The first judging unit, for judging the top pressure signal of described blast furnace, determines fault type and the fault degree of described blast furnace;
Main by-pass valve regulon, for when described blast furnace top pressure is during higher than set(ting)value 5kPa, introduces main by-pass valve and participates in coordinating to control to regulate to control with described stator blade coordinating to control.
Wherein, described fault accommodation control unit specifically also comprises:
The second judging unit, for judging that whether described blast furnace top pressure is higher than set(ting)value 10kPa;
Secondary by-pass valve regulon, while for judgment result is that being,, when described main by-pass valve is opened, secondary by-pass valve is opened rapidly default aperture, and opens rapidly according to the described top situation of pressing, and controls described blast furnace top pressure stable;
The 3rd judging unit, for judging that whether described working of a furnace information is for seriously having some setbacks;
Pressure reducing valve of blast furnace regulon, be used for judgment result is that while being, the heavy fault of described TRT unit is jumped after car, and described main by-pass valve is born top and pressed when regulating, described secondary by-pass valve is opened rapidly default aperture, and it is stable by pressure reducing valve of blast furnace, to control described blast furnace top pressure.
Known via above-mentioned technical scheme, compared with prior art, the invention discloses a kind of TRT control method for coordinating and system, the method comprises: signal, working of a furnace information and gas flow signal are pressed in the top that gathers blast furnace; By PLC Controlling System, according to described top, press signal, described working of a furnace information and described gas flow signal judgement blast furnace situation, carry out the adjusted stepwise of TRT unit and control.This invention adopts blast furnace fault bypass automatically to protect control thinking; harmonious orderly by stator blade, by-pass valve and pressure reducing valve of blast furnace group coordinates adjusting; guarantee the round-the-clock running when operation of blast furnace of TRT unit energy, at blast furnace top pressure, during higher than preset value, TRT unit is not shut down; TRT unit stator blade regulates when controlling; bypass participates in, and shunting, by the gas flow of TRT unit turbine, is protected TRT unit; assurance blast furnace top pressure is stable, and effectively guarantees that TRT unit continues generating.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skills, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
Fig. 1 is the disclosed a kind of TRT control method for coordinating schema of the embodiment of the present invention;
Fig. 2 is that the disclosed a kind of TRT of the embodiment of the present invention coordinates control flow chart;
Fig. 3 is that the disclosed a kind of TRT of the embodiment of the present invention coordinates sequence of control schema;
Fig. 4 is the disclosed a kind of TRT coordinated control system structural representation of the embodiment of the present invention;
Fig. 5 is the concrete structure schematic diagram of the disclosed a kind of TRT coordinated control system of the embodiment of the present invention;
Fig. 6 is the concrete structure schematic diagram of the disclosed described fault accommodation control unit of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The invention discloses a kind of TRT control method for coordinating and system, this invention comprises: signal, working of a furnace information and gas flow signal are pressed in the top that gathers blast furnace; By PLC Controlling System, according to described top, press signal, described working of a furnace information and described gas flow signal judgement blast furnace situation, carry out the adjusted stepwise of TRT unit and control.This invention adopts blast furnace fault bypass automatically to protect control thinking; harmonious orderly by stator blade, by-pass valve and pressure reducing valve of blast furnace group coordinates adjusting; guarantee the round-the-clock running when operation of blast furnace of TRT unit energy, at blast furnace top pressure, during higher than preset value, TRT unit is not shut down; TRT unit stator blade regulates when controlling; bypass participates in, and shunting, by the gas flow of TRT unit turbine, is protected TRT unit; assurance blast furnace top pressure is stable, and effectively guarantees that TRT unit continues generating.
Referring to accompanying drawing 1, is the disclosed a kind of TRT control method for coordinating schema of the embodiment of the present invention.The embodiment of the invention discloses a kind of TRT control method for coordinating, the method concrete steps comprise:
Step 101: signal, working of a furnace information and gas flow signal are pressed in the top that gathers blast furnace;
Step 102: press signal, described working of a furnace information and described gas flow signal judgement blast furnace situation by PLC Controlling System according to described top, carry out the adjusted stepwise of TRT unit and control.
Concrete, step 102 specifically comprises:
Step 1021: carry out stator blade by described TRT unit and regulate control when described working of a furnace information is normal;
Step 1022: when blast furnace breaks down situation, introduce top and press by-pass valve to participate in coordinating to control.
Before step 101, also comprise:
Step 100: rule of thumb fault data and Theoretical Calculation combine and set up blast furnace top pressure fault experts database, according to fault type and fault degree, controls by-pass valve and coordinates to control.
Concrete, above-mentioned steps 1022 specifically comprises:
Step 10221: signal is pressed on the top that judges described blast furnace, determines fault type and the fault degree of described blast furnace;
Step 10222: when described blast furnace top pressure is during higher than set(ting)value 5kPa, introduce main by-pass valve and participate in coordinating to control to regulate to control with described stator blade coordinating to control.
Above-mentioned steps 1022 specifically also comprises:
Step 10223: judge that described blast furnace top pressure, whether higher than set(ting)value 10kPa, if so, enters step 10224, if not, enter step 10225;
Step 10224:, when described main by-pass valve is opened, secondary by-pass valve is opened rapidly default aperture, and open rapidly according to the described top situation of pressing, described blast furnace top pressure controlled stable;
Step 10225: judge that described working of a furnace information, whether for seriously having some setbacks, if so, enters step 10226, if not, enter step 10227;
Step 10226: the heavy fault of described TRT unit is jumped after car, and described main by-pass valve is born top and pressed when regulating, and described secondary by-pass valve is opened rapidly default aperture, and it is stable to control described blast furnace top pressure by pressure reducing valve of blast furnace;
Step 10227: described TRT unit normally moves.
According to foregoing description, refer to accompanying drawing 2, for the embodiment of the present invention, disclosed a kind of TRT coordinates control flow chart.Refer to accompanying drawing 3, for the embodiment of the present invention, disclosed a kind of TRT coordinates sequence of control schema.
TRT Coordinated Control mainly comprises control unit and signal gathering unit.Control unit is core, is mainly that the substep that carries out TRT unit according to conditions of blast furnace by PLC Controlling System is controlled.When conditions of blast furnace is normal, by TRT unit, regulate control; In the blast furnace situation that breaks down, as collapse material, while the situation such as fetching water, when deviation is pressed on top higher than 5kPa, introduce top to press high main bypass to participate in controlling; Under limiting case, gas flow can moment become very large, and a bypass participates in reducing rapidly stator blade burden, and top is pressed and can be continued to raise and even when above higher than set(ting)value 10kPa, take the three valves interlocks of blast furnace gas super-flow to protect; In the serious up time not of conditions of blast furnace, the heavy fault of TRT is jumped the two by-pass valve of car and is regulated protection; When TRT unit is started shooting, little load is jumped car bypass and is regulated protection.Whole invention is mainly to guarantee blast furnace production simultaneously, and TRT regulates operation comprehensively, improves generated energy.
According to described above, it is as follows that the present invention coordinates to control concrete grammar:
Conditions of blast furnace is smooth, and top presses deviation in allowed band, adopts TRT unit stator blade to regulate control.
In the blast furnace situation that breaks down; as collapse material, while the situation such as fetching water; gas flow moment by TRT increases; top presses deviation to be greater than 5kPa; introducing top presses high main bypass to participate in controlling; adopt intelligent control technology; according to passing fault data and Theoretical Calculation, combine, set up blast furnace top pressure fault experts database, when blast furnace top pressure moment increase; according to fault type and degree; make main by-pass valve open rapidly the numerical value of experts database inquiry, and open rapidly according to top pressure situation, until press on top, stablize; according to top pressure situation, turn down again, to protect unit safety.
Under limiting case, gas flow can moment become very large, and a bypass participates in reducing rapidly stator blade burden, and top is pressed and can be continued to raise and even higher than more than set(ting)value 10kPa.Design adopts super-flow three valve interlock protections to control thinking; top is pressed in when above higher than set(ting)value 10kPa; when main bypass is opened; secondary by-pass valve is opened rapidly certain aperture; and open rapidly according to top pressure situation, until press on top, stablize, then turn down according to predetermined speed linearity according to top pressure situation; with protection unit safety, and guarantee the generating of TRT continuous service.
At conditions of blast furnace, seriously have some setbacks, the heavy fault of TRT is jumped after car, and main bypass has been born to push up and pressed under the operating mode regulating, and also needs to consider the high operating mode of top pressure.Main bypass cannot be stablized rapidly blast furnace top pressure, and now secondary bypass is opened certain aperture fast, can play the effect of pressure release.And open rapidly according to top pressure situation, until press on top, stablize, then turn down according to top pressure situation, to protect unit safety.
The invention discloses a kind of TRT control method for coordinating, the method comprises: signal, working of a furnace information and gas flow signal are pressed in the top that gathers blast furnace; By PLC Controlling System, according to described top, press signal, described working of a furnace information and described gas flow signal judgement blast furnace situation, carry out the adjusted stepwise of TRT unit and control.This invention adopts blast furnace fault bypass automatically to protect control thinking; harmonious orderly by stator blade, by-pass valve and pressure reducing valve of blast furnace group coordinates adjusting; guarantee the round-the-clock running when operation of blast furnace of TRT unit energy, at blast furnace top pressure, during higher than preset value, TRT unit is not shut down; TRT unit stator blade regulates when controlling; bypass participates in, and shunting, by the gas flow of TRT unit turbine, is protected TRT unit; assurance blast furnace top pressure is stable, and effectively guarantees that TRT unit continues generating.
On the basis of the disclosed embodiment of the invention described above, refer to accompanying drawing 4, be the disclosed a kind of TRT coordinated control system structural representation of the embodiment of the present invention.The embodiment of the invention also discloses a kind of TRT coordinated control system, this system concrete structure comprises: collecting unit 201, for gathering the top of blast furnace, press signal, working of a furnace information and gas flow signal; Regulation unit 202, for pressing signal, described working of a furnace information and described gas flow signal judgement blast furnace situation by PLC Controlling System according to described top, carries out the adjusted stepwise of TRT unit and controls.
This system adopts blast furnace fault bypass automatically to protect control thinking; harmonious orderly by stator blade, by-pass valve and pressure reducing valve of blast furnace group coordinates adjusting; guarantee the round-the-clock running when operation of blast furnace of TRT unit energy, at blast furnace top pressure, during higher than preset value, TRT unit is not shut down; TRT unit stator blade regulates when controlling; bypass participates in, and shunting, by the gas flow of TRT unit turbine, is protected TRT unit; assurance blast furnace top pressure is stable, and effectively guarantees that TRT unit continues generating.
Concrete, refer to accompanying drawing 5, be the disclosed a kind of TRT coordinated control system concrete structure schematic diagram of the embodiment of the present invention.Wherein, regulation unit 202 described above specifically comprises: stator blade regulation unit 2021, regulates control for carry out stator blade by described TRT unit when described working of a furnace information is normal; Fault accommodation control unit 2022, for when blast furnace breaks down situation, introduces top and presses by-pass valve to participate in coordinating to control.
Preferably, before described collecting unit, also comprise: set up experts database unit 200, for rule of thumb fault data and Theoretical Calculation, combine and set up blast furnace top pressure fault experts database, according to fault type and fault degree, control by-pass valve and coordinate to control.
Wherein, referring to accompanying drawing 6, is the concrete structure schematic diagram of the disclosed described fault accommodation control unit of the embodiment of the present invention.Described fault accommodation control unit 2022 specifically comprises: the first judging unit 20221, for judging the top pressure signal of described blast furnace, determine fault type and the fault degree of described blast furnace; Main by-pass valve regulon 20222, for when described blast furnace top pressure is during higher than set(ting)value 5kPa, introduces main by-pass valve and participates in coordinating to control to regulate to control with described stator blade coordinating to control.
Wherein, described fault accommodation control unit 2022 specifically also comprises: the second judging unit 20223, for judging that whether described blast furnace top pressure is higher than set(ting)value 10kPa; Secondary by-pass valve regulon 20224, while for judgment result is that being,, when described main by-pass valve is opened, secondary by-pass valve is opened rapidly default aperture, and opens rapidly according to the described top situation of pressing, and controls described blast furnace top pressure stable; The 3rd judging unit 20225, for judging that whether described working of a furnace information is for seriously having some setbacks; Pressure reducing valve of blast furnace regulon 20226, be used for judgment result is that while being, the heavy fault of described TRT unit is jumped after car, and described main by-pass valve is born top and pressed when regulating, described secondary by-pass valve is opened rapidly default aperture, and it is stable by pressure reducing valve of blast furnace, to control described blast furnace top pressure.
In sum: the invention discloses a kind of TRT control method for coordinating and system, the method comprises: signal, working of a furnace information and gas flow signal are pressed in the top that gathers blast furnace; By PLC Controlling System, according to described top, press signal, described working of a furnace information and described gas flow signal judgement blast furnace situation, carry out the adjusted stepwise of TRT unit and control.This invention adopts blast furnace fault bypass automatically to protect control thinking; harmonious orderly by stator blade, by-pass valve and pressure reducing valve of blast furnace group coordinates adjusting; guarantee the round-the-clock running when operation of blast furnace of TRT unit energy, at blast furnace top pressure, during higher than preset value, TRT unit is not shut down; TRT unit stator blade regulates when controlling; bypass participates in, and shunting, by the gas flow of TRT unit turbine, is protected TRT unit; assurance blast furnace top pressure is stable, and effectively guarantees that TRT unit continues generating.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a TRT control method for coordinating, is characterized in that, comprising:
Signal, working of a furnace information and gas flow signal are pressed in the top that gathers blast furnace;
By PLC Controlling System, according to described top, press signal, described working of a furnace information and described gas flow signal judgement blast furnace situation, carry out the adjusted stepwise of TRT unit and control.
2. method according to claim 1, is characterized in that, the described PLC Controlling System of passing through is pressed signal, described working of a furnace information and described gas flow signal judgement blast furnace situation according to described top, and the adjusted stepwise control of carrying out TRT unit specifically comprises:
When described working of a furnace information is normal, by described TRT unit, carry out stator blade and regulate control;
When blast furnace breaks down situation, introduce top and press by-pass valve to participate in coordinating to control.
3. method according to claim 1, is characterized in that, the top of described collection blast furnace comprises before pressing signal, working of a furnace information and gas flow signal:
Rule of thumb fault data and Theoretical Calculation combine and set up blast furnace top pressure fault experts database, according to fault type and fault degree, control by-pass valve and coordinate to control.
4. method according to claim 3, is characterized in that, described when blast furnace breaks down situation, introduces top and presses by-pass valve to participate in coordinating to control specifically comprising:
Signal is pressed on the top that judges described blast furnace, determines fault type and the fault degree of described blast furnace;
When described blast furnace top pressure is during higher than set(ting)value 5kPa, introduce main by-pass valve and participate in coordinating to control to regulate to control with described stator blade coordinating to control.
5. method according to claim 4, is characterized in that, described when blast furnace breaks down situation, introduces top and presses by-pass valve to participate in coordinating to control specifically also comprising:
Judge that whether described blast furnace top pressure is higher than set(ting)value 10kPa;
If so,, when described main by-pass valve is opened, secondary by-pass valve is opened rapidly default aperture, and opens rapidly according to the described top situation of pressing, and controls described blast furnace top pressure stable;
If not, judge that whether described working of a furnace information is for seriously having some setbacks;
If so, the heavy fault of described TRT unit is jumped after car, and described main by-pass valve is born top and pressed when regulating, and described secondary by-pass valve is opened rapidly default aperture, and it is stable by pressure reducing valve of blast furnace, to control described blast furnace top pressure;
If not, described TRT unit normally moves.
6. a TRT coordinated control system, is characterized in that, comprising:
Collecting unit, presses signal, working of a furnace information and gas flow signal for gathering the top of blast furnace;
Regulation unit, for pressing signal, described working of a furnace information and described gas flow signal judgement blast furnace situation by PLC Controlling System according to described top, carries out the adjusted stepwise of TRT unit and controls.
7. system according to claim 6, is characterized in that, described regulation unit specifically comprises:
Stator blade regulation unit, regulates control for carry out stator blade by described TRT unit when described working of a furnace information is normal;
Fault accommodation control unit, for when blast furnace breaks down situation, introduces top and presses by-pass valve to participate in coordinating to control.
8. system according to claim 6, is characterized in that, before described collecting unit, also comprises:
Set up experts database unit, for rule of thumb fault data and Theoretical Calculation, combine and set up blast furnace top pressure fault experts database, according to fault type and fault degree, control by-pass valve and coordinate to control.
9. system according to claim 8, is characterized in that, described fault accommodation control unit specifically comprises:
The first judging unit, for judging the top pressure signal of described blast furnace, determines fault type and the fault degree of described blast furnace;
Main by-pass valve regulon, for when described blast furnace top pressure is during higher than set(ting)value 5kPa, introduces main by-pass valve and participates in coordinating to control to regulate to control with described stator blade coordinating to control.
10. system according to claim 9, is characterized in that, described fault accommodation control unit specifically also comprises:
The second judging unit, for judging that whether described blast furnace top pressure is higher than set(ting)value 10kPa;
Secondary by-pass valve regulon, while for judgment result is that being,, when described main by-pass valve is opened, secondary by-pass valve is opened rapidly default aperture, and opens rapidly according to the described top situation of pressing, and controls described blast furnace top pressure stable;
The 3rd judging unit, for judging that whether described working of a furnace information is for seriously having some setbacks;
Pressure reducing valve of blast furnace regulon, be used for judgment result is that while being, the heavy fault of described TRT unit is jumped after car, and described main by-pass valve is born top and pressed when regulating, described secondary by-pass valve is opened rapidly default aperture, and it is stable by pressure reducing valve of blast furnace, to control described blast furnace top pressure.
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| CN112094971A (en) * | 2019-06-17 | 2020-12-18 | 宝钢集团新疆八一钢铁有限公司 | Four-valve-bank control optimization method for blast furnace |
| CN113373272A (en) * | 2021-06-11 | 2021-09-10 | 山东钢铁股份有限公司 | Control method for top pressure of blast furnace |
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| CN104372126A (en) * | 2014-10-31 | 2015-02-25 | 江苏永钢集团有限公司 | Blast furnace top pressure signal control method based on TRTPLC control |
| CN104372126B (en) * | 2014-10-31 | 2016-04-20 | 江苏永钢集团有限公司 | A kind of blast furnace top pressure signal control method controlled based on TRTPLC |
| CN105986047A (en) * | 2015-02-25 | 2016-10-05 | 鞍钢股份有限公司 | Method for controlling bearing bush grinding of blast furnace top gas recovery turbine unit |
| CN112094971A (en) * | 2019-06-17 | 2020-12-18 | 宝钢集团新疆八一钢铁有限公司 | Four-valve-bank control optimization method for blast furnace |
| CN110425231A (en) * | 2019-08-28 | 2019-11-08 | 西安陕鼓动力股份有限公司 | The tripping control system and its control method of BPRT unit speed change clutch |
| CN110425231B (en) * | 2019-08-28 | 2021-03-09 | 西安陕鼓动力股份有限公司 | Trip control system and method for BPRT set speed change clutch |
| CN113373272A (en) * | 2021-06-11 | 2021-09-10 | 山东钢铁股份有限公司 | Control method for top pressure of blast furnace |
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| CN103725813B (en) | 2015-05-20 |
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