CN110273036A - A kind of gravity blast furnace dust catcher ash position monitoring alarm device and monitoring alarm method - Google Patents
A kind of gravity blast furnace dust catcher ash position monitoring alarm device and monitoring alarm method Download PDFInfo
- Publication number
- CN110273036A CN110273036A CN201910702612.8A CN201910702612A CN110273036A CN 110273036 A CN110273036 A CN 110273036A CN 201910702612 A CN201910702612 A CN 201910702612A CN 110273036 A CN110273036 A CN 110273036A
- Authority
- CN
- China
- Prior art keywords
- ash
- alarm
- monitoring alarm
- blast furnace
- temperature sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/22—Dust arresters
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
Present invention discloses a kind of gravity blast furnace dust catcher ash position monitoring alarm devices, it needs to unload dust when dust runs up to A height and position in gravitational precipitator, A height and position inside the gravitational precipitator is provided with high-order temperature sensor, the high position temperature sensor connects controller signals input terminal by signal wire, and the controller output end connects high level alarm by signal wire.Gravitational precipitator low ash of the present invention position alarm system can stop unloading ash, it is ensured that the personal safety of the safety and stability production and operating area personnel of blast furnace before coal gas and dust leakage occur for low ash position.
Description
Technical field
The present invention relates to gravity blast furnace dust catchers remotely to unload grey control technology field.
Background technique
The blast furnace of iron and steel metallurgical industry can generate a large amount of dust in process of production, and gravity blast furnace dust catcher is raw coke oven gas
Dust pelletizing system primary dedusting device, dust-cleaning principle are unexpected reduction Gas Flow flow velocity and change flow direction, the dust of larger particles
It under gravity and inertia force effect, is separated with coal gas, is deposited to deduster cone bottom point, is discharged through ash exhauster to blender,
Dust removal efficiency can achieve 60%.
During normal production, gravity blast furnace dust catcher generally unloads ash using timing, when unloading ash after the contraposition of confirmation tank car, puts down soft
Connection starts humidifying agitator, opens electro-hydraulic ball valve to suitable aperture and unload ash, during entirely unloading ash, gravitational precipitator
Interior ash position is that operator needs to be grasped an important information, and grey position determines to unload the beginning of grey operation and stop in gravitational precipitator
Only, while also blast furnace safety is produced and prevents coal gas, dust leakage from playing a key effect.Judge inside gravitational precipitator in the past
Grey position mainly leans on experience or hand to touch the method for skin temperature to realize, but has the disadvantage in that
1, the not high easy erroneous judgement of accuracy；
2, relatively-stationary full-time operator is needed；
3, because position grey in gravitational precipitator situation cannot monitor in time and accurately show, the drop during ash with grey position is unloaded
Low, it is too low that the fluctuation of high gas stream in the stove may cause ash quantity inside gravitational precipitator, and gas leak and a large amount of dust is caused to leak outside
Etc. serious accidents generation.
Summary of the invention
The technical problem to be solved by the present invention is to realize it is a kind of prevent to unload too low with grey position during ash, make
At the gravitational precipitator low ash position alarm system of the generation of the major accidents such as coal gas and dust leakage.
To achieve the goals above, a kind of the technical solution adopted by the present invention are as follows: gravity blast furnace dust catcher ash position monitoring report
Alarm device needs to unload when dust runs up to A height and position in gravitational precipitator dust, the A inside the gravitational precipitator
Height and position is provided with high-order temperature sensor, and the high position temperature sensor connects controller signals input by signal wire
End, the controller output end connect high level alarm by signal wire.
Need to unload dust when dust runs up to B height position in gravitational precipitator, the B height position is located at A high
It spends below position, the B height position inside the gravitational precipitator is provided with low level temperature sensor, the low level temperature sensing
Device connects controller signals input terminal by signal wire, and the controller output end connects low-level alarm by signal wire.
The top of the gravitational precipitator, which is equipped with, pushes up warm temperature sensor, and the warm temperature sensor in the top is connected by signal wire
Connect controller signals input terminal.
The cinder-discharging port of the gravitational precipitator goes out to be equipped with CO alarm, and the CO alarm connects controller by signal wire
Signal input part.
The cinder-discharging port is equipped with Unloading ball valve, and the cinder-discharging port, which is equipped with, obtains the position biography whether lower section tank car is aligned in place
Sensor, the position sensor connect controller signals input terminal, the control signal output of the controller by signal wire
Unloading ball valve is connected by signal wire.
Monitoring alarm method based on gravity blast furnace dust catcher ash position monitoring alarm device described in claim:
Warm temperature sensor is pushed up to obtain top temperature in real time and be delivered to controller；
High-order temperature sensor obtains high-order temperature in real time and is delivered to controller；
Low level temperature sensor obtains low level temperature in real time and is delivered to controller；
When top temperature and the ratio of high-order temperature are greater than threshold value Q, determine to be currently high ash position, then execute high ash bit instruction；
When the ratio for pushing up Wen Yuyu low level temperature is less than threshold value P, determines to be currently low ash position, then execute low ash position and refer to
It enables.
The threshold value Q=1.4, the threshold value P=1.5.
When manual ash disposal mode, high ash bit instruction and low ash bit instruction are to pass through alarm equipment alarm；
When automatic ash-removing mode, when being in high ash position, if not receiving tank car registration signal, only pass through alarm report
It is alert, if receiving tank car registration signal, ash ejector and delayed start-up Unloading ball valve are opened, when obtaining tank car full signal or work as
Preceding is low ash position state, then after first Unloading ball valve, turns off ash ejector.
Unloading ball valve open when, if CO alarm obtain parameter be greater than setting upper limit value, be automatically closed Unloading ball valve and
Ash is unloaded in ash ejector stopping, being lower than preset lower limit when CO alarm obtains parameter, then opens Unloading ball valve and ash ejector recovery is unloaded
Ash.
As ash ejector running current=0A, Unloading ball valve stopping is automatically closed and unloads ash, when ash ejector running current restores
It is normal then automatically turn on Unloading ball valve recovery unload ash；It is more than setting time that when top, temperature, which is greater than 300 degrees Celsius and duration, then closes
Automatic ash-removing mode is closed, manual ash disposal mode is started.
Gravitational precipitator low ash of the present invention position alarm system can stop before coal gas and dust leakage occur for low ash position
Only unload ash, it is ensured that the personal safety of the safety and stability production and operating area personnel of blast furnace.
Detailed description of the invention
The content of width attached drawing every in description of the invention expression is briefly described below:
Fig. 1 is gravity blast furnace dust catcher ash position monitoring alarm device schematic diagram；
Fig. 2 is gravity blast furnace dust catcher ash position monitoring alarm method flow chart.
Specific embodiment
Below against attached drawing, by the description of the embodiment, for example related each component of a specific embodiment of the invention
Shape, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle, manufacturing process and
Operate with method etc., is described in further detail, to help those skilled in the art to inventive concept of the invention, technology
Scheme has more complete, accurate and deep understanding.
The present invention utilizes thermometric galvanic couple (temperature sensor) institute for being mounted on different parts in gravitational precipitator vertical direction
The temperature measured is tracked, in gravitational precipitator gravitational dust cover galvanic couple temperature because gravitational dust precipitation temperature gradually under
Drop, will be less than gas temperature, the relationship of the temperature according to measured by the thermometric galvanic couple of grey position and different parts, set sound-light alarm
Signal closes unloading valve stopping in time and unloads ash manipulation.
Operator judges the height situation of grey position inside gravitational precipitator according to the temperature change of each key point.The method
Advantage is: 1, without fixed full-time operator body-sensing judge grey position, 2, grey position determine that accuracy is high, 3, can prevent because of ash
The generation of accident to leak the coal gas caused by position is too low.
A height and position and B height position be depending on gravitational precipitator size, gravitational precipitator generally unload ash and
Stop unloading the technical requirements of ash, A height and position and B height position then require to set according to this.Controller is an acquisition temperature
The device of sensor signal, signal and threshold value comparison for will acquire can carry out signal processing using chip, can also use
The comparator of analog circuit is completed, and final output two-way alarm signal respectively refers to high level alarm and low-level alarm, thus
Different sections are alarmed, and when high level alarm is alarmed, staff are needed to unload ash in time, when low-level alarm alarm,
It then needs worker person to stop unloading ash, avoids gas leak.
This device, which carries out grey position control, the technique for being not only able to satisfy blast furnace safety steady production inside gravitational precipitator, to be needed
It asks, while being also able to satisfy the safe operation requirement of coal gas processing system.
By to temperature comparisons measured by each temperature measuring point of horse steel three-iron head factory A gravity blast furnace dust catcher and coal gas dust removal effect
The tracking situation of fruit determines that using 03 temperature measuring point position as high ash position, 04 or 06 temperature measuring point position is low ash position (see photo), according to
Historical data analysis, measured by discovery top temperature and 3#, 4#, 6# temperature measuring point between temperature, there are a relatively-stationary ratio Q and
P, data statistics: it is 1.4 that temperature is pushed up when high ash position with 03 monitoring point mean ratio Q, and top temperature and 04 or 06 monitoring point are average when low level
Ratio P is 1.5.
Technical requirements:
When the high-value H high=top T/T03 > Q value, full level alarm is issued on middle control monitored picture, controls operation in prompting
Personnel contact tank car in time and march into the arena, and by process flow (being detailed in gravitational precipitator automatic ash-discharging and monitoring alarm process flow chart)
Carry out outward transport operational event.
When low-value H it is low=top T/T04 (T06) < P value when, on middle control monitored picture and scene is simultaneously emitted by low level report
Alert and CO overload alarm, and Unloading ball valve is automatically closed and stops ash ejector work, control, site operation personnel stop in time in prompting
Operational event is only transported outward, the too low generation for leading to accident to leak the coal gas in grey position is avoided.
Under no low alarm state, when fixed CO alarm issues CO > 160ppm alarm, it is automatically closed and unloads grey ball
Ash is unloaded in valve stopping, when fixed CO alarm issues CO < 50ppm alarm, after confirming that scene is normal, in middle control monitored picture
" allowing to unload gray signal ", then continue to unload ash by automatic control program.
When ash ejector running current=0A (i.e. disorderly closedown), Unloading ball valve stopping is automatically closed and unloads ash, event to be confirmed
Hinder it is processed after, " allow to unload gray signal " in middle control monitored picture, then continue to unload ash by automatic control program.
If because working of a furnace problem cause to push up it is warm for a long time > 300 DEG C when, gravitational precipitator should be unloaded to ash and be changed to manually control, just
In subsequent emergency operation.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without changing
It is within the scope of the present invention into the conception and technical scheme of the invention are directly applied to other occasions.
Claims (10)
1. a kind of gravity blast furnace dust catcher ash position monitoring alarm device, when dust runs up to A height and position in gravitational precipitator
It needs to unload dust, it is characterised in that: the A height and position inside the gravitational precipitator is provided with high-order temperature sensor, institute
It states high-order temperature sensor and controller signals input terminal is connected by signal wire, the controller output end is connected by signal wire
High level alarm.
2. gravity blast furnace dust catcher ash according to claim 1 position monitoring alarm device, it is characterised in that: work as gravitational dust collection
Need to unload dust when dust runs up to B height position in device, the B height position is located at below A height and position, the gravity
B height position inside deduster is provided with low level temperature sensor, and the low level temperature sensor is connected by signal wire and controlled
Device signal input part processed, the controller output end connect low-level alarm by signal wire.
3. gravity blast furnace dust catcher ash according to claim 2 position monitoring alarm device, it is characterised in that: the gravity removes
The top of dirt device, which is equipped with, pushes up warm temperature sensor, and the warm temperature sensor in the top connects controller signals input by signal wire
End.
4. gravity blast furnace dust catcher ash according to claim 3 position monitoring alarm device, it is characterised in that: the gravity removes
The cinder-discharging port of dirt device, which goes out, is equipped with CO alarm, and the CO alarm connects controller signals input terminal by signal wire.
5. gravity blast furnace dust catcher ash according to claim 4 position monitoring alarm device, it is characterised in that: the cinder-discharging port
Equipped with Unloading ball valve, the cinder-discharging port, which is equipped with, obtains the position sensor whether lower section tank car is aligned in place, the position sensing
Device connects controller signals input terminal by signal wire, and the control signal output of the controller unloads ash by signal wire connection
Ball valve.
6. based on the monitoring alarm method of the gravity blast furnace dust catcher ash any in claim 1-5 position monitoring alarm device,
It is characterized by:
Warm temperature sensor is pushed up to obtain top temperature in real time and be delivered to controller；
High-order temperature sensor obtains high-order temperature in real time and is delivered to controller；
Low level temperature sensor obtains low level temperature in real time and is delivered to controller；
When top temperature and the ratio of high-order temperature are greater than threshold value Q, determine to be currently high ash position, then execute high ash bit instruction；
When the ratio for pushing up Wen Yuyu low level temperature is less than threshold value P, determines to be currently low ash position, then execute low ash bit instruction.
7. monitoring alarm method according to claim 6, it is characterised in that: the threshold value Q=1.4, the threshold value P=
1.5。
8. monitoring alarm method according to claim 6 or 7, it is characterised in that: when manual ash disposal mode, high ash bit instruction
It is to pass through alarm equipment alarm with low ash bit instruction；
When automatic ash-removing mode, when being in high ash position, if not receiving tank car registration signal, only pass through alarm equipment alarm,
If receiving tank car registration signal, ash ejector and delayed start-up Unloading ball valve are opened, when obtaining tank car full signal or current
Ash ejector is turned off then after first Unloading ball valve for low ash position state.
9. monitoring alarm method according to claim 8, it is characterised in that: when Unloading ball valve is opened, if CO alarm obtains
It obtains parameter and is greater than setting upper limit value, then Unloading ball valve is automatically closed and ash is unloaded in ash ejector stopping, when CO alarm acquisition parameter is low
In preset lower limit, then opens Unloading ball valve and ash is unloaded in ash ejector recovery.
10. monitoring alarm method according to claim 9, it is characterised in that: as ash ejector running current=0A, automatically
It closes Unloading ball valve stopping and unloads ash, restore to unload ash when ash ejector running current restores the normal Unloading ball valve that then automatically turns on；Work as top
It is more than setting time that temperature, which is greater than 300 degrees Celsius and duration, then closes automatic ash-removing mode, start manual ash disposal mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910702612.8A CN110273036A (en) | 2019-07-31 | 2019-07-31 | A kind of gravity blast furnace dust catcher ash position monitoring alarm device and monitoring alarm method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910702612.8A CN110273036A (en) | 2019-07-31 | 2019-07-31 | A kind of gravity blast furnace dust catcher ash position monitoring alarm device and monitoring alarm method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110273036A true CN110273036A (en) | 2019-09-24 |
Family
ID=67965759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910702612.8A Pending CN110273036A (en) | 2019-07-31 | 2019-07-31 | A kind of gravity blast furnace dust catcher ash position monitoring alarm device and monitoring alarm method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110273036A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113564293A (en) * | 2021-07-04 | 2021-10-29 | 山西太钢不锈钢股份有限公司 | Real-time state monitoring method for blast furnace dust removal system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110265652A1 (en) * | 2008-05-27 | 2011-11-03 | Synthesis Engery Systems, Inc | Dust Removal Method Using Baghouse Filters And Dust Removal Apparatus Therefor |
| CN108225477A (en) * | 2018-01-12 | 2018-06-29 | 邯郸市邯钢集团信达科技有限公司 | A kind of method for measuring Gas Cleaning With Bag House cylinder ash position |
| CN109897926A (en) * | 2017-12-11 | 2019-06-18 | 上海梅山钢铁股份有限公司 | Blast furnace gravitational dust collection apparatus for ash |
| CN110016530A (en) * | 2019-05-06 | 2019-07-16 | 中冶赛迪工程技术股份有限公司 | A kind of blast furnace gas all dry purification system and its process flow |
| CN210367752U (en) * | 2019-07-31 | 2020-04-21 | 马鞍山钢铁股份有限公司 | Monitoring and alarming device for ash level of gravity dust collector of blast furnace |
-
2019
- 2019-07-31 CN CN201910702612.8A patent/CN110273036A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110265652A1 (en) * | 2008-05-27 | 2011-11-03 | Synthesis Engery Systems, Inc | Dust Removal Method Using Baghouse Filters And Dust Removal Apparatus Therefor |
| CN109897926A (en) * | 2017-12-11 | 2019-06-18 | 上海梅山钢铁股份有限公司 | Blast furnace gravitational dust collection apparatus for ash |
| CN108225477A (en) * | 2018-01-12 | 2018-06-29 | 邯郸市邯钢集团信达科技有限公司 | A kind of method for measuring Gas Cleaning With Bag House cylinder ash position |
| CN110016530A (en) * | 2019-05-06 | 2019-07-16 | 中冶赛迪工程技术股份有限公司 | A kind of blast furnace gas all dry purification system and its process flow |
| CN210367752U (en) * | 2019-07-31 | 2020-04-21 | 马鞍山钢铁股份有限公司 | Monitoring and alarming device for ash level of gravity dust collector of blast furnace |
Non-Patent Citations (2)
| Title |
|---|
| 商靖宇等: "高炉煤气布袋除尘器筒体灰位测量浅论" * |
| 幸福堂等: "除尘器自动排灰控制系统的研制" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113564293A (en) * | 2021-07-04 | 2021-10-29 | 山西太钢不锈钢股份有限公司 | Real-time state monitoring method for blast furnace dust removal system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110438284B (en) | Intelligent tapping device of converter and control method | |
| US11607628B2 (en) | Systems and processes for automated sand separation | |
| CN205555113U (en) | Buggy storehouse safety arrangement | |
| CN207957141U (en) | A kind of Locomotive remote based on infrared laser scanning recognition fills mine device automatically | |
| CN110273036A (en) | A kind of gravity blast furnace dust catcher ash position monitoring alarm device and monitoring alarm method | |
| CN107516944A (en) | It is a kind of to be used to aid in the sequence operation method confirmed by graphical analysis disconnecting link state | |
| CN109823782A (en) | A kind of silo operating equipment | |
| CN107502376A (en) | A kind of efficiently automatic coke oven lid device for detecting temperature | |
| CN113832276A (en) | Automatic control method for intelligent iron blocking port of blast furnace tapping | |
| CN107164592A (en) | Blast furnace casting information centralized-moni- tor system | |
| CN110104441A (en) | The defeated grey stored program controlled of boiler dry ash handling system | |
| CN114104755B (en) | Intelligent management system and method for feeding bin of blast furnace tank | |
| CN212923627U (en) | One-card loading system for cement clinker | |
| CN112744539B (en) | Monitoring system of energy-saving multiphase flow self-circulation dust suppression and removal device | |
| CN109282643A (en) | Ferronickel electric furnace top filling Unmanned System and control method | |
| CN113671895A (en) | Mine is drop shaft self-adaptation ore drawing system in pit | |
| CN113832277B (en) | Blast furnace tapping intelligent judgment and automatic opening control method | |
| CN209428548U (en) | A kind of environment-friendly and energy-efficient blast furnace cinder intelligent processing system | |
| CN210367752U (en) | Monitoring and alarming device for ash level of gravity dust collector of blast furnace | |
| CN109439815A (en) | Intelligence grabs slag device | |
| CN205634710U (en) | Tower crane remote control unit | |
| CN108910703A (en) | A kind of Weighing method that rubbish is hung | |
| CN113467361A (en) | Remote control automatic discharging method for blast furnace ore tank feeding trolley | |
| CN109896248A (en) | More feed bin dump car position-indicating devices and indicating means | |
| CN107270975A (en) | A kind of rock wool molten volume flow on-line measurement device, fiber-forming device and measuring method comprising it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |