CN110470148A - A kind of water seal tank of rotary hearth furnace real-time detecting system and its detection method - Google Patents
A kind of water seal tank of rotary hearth furnace real-time detecting system and its detection method Download PDFInfo
- Publication number
- CN110470148A CN110470148A CN201910801230.0A CN201910801230A CN110470148A CN 110470148 A CN110470148 A CN 110470148A CN 201910801230 A CN201910801230 A CN 201910801230A CN 110470148 A CN110470148 A CN 110470148A
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- China
- Prior art keywords
- water
- water seal
- level value
- rotary hearth
- hearth furnace
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
- C21B13/105—Rotary hearth-type furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a kind of water seal tank of rotary hearth furnace real-time detecting systems, including water seal general pipeline, coupled several logical water sealed tanks, it further include the water seal general pipeline shut-off valve on water seal general pipeline, and several water seal straight tube pipelines, electronic stop valve is connected on every water seal straight tube pipeline, water seal straight tube pipeline is connected to by electronic stop valve with corresponding water sealed tank, is equipped with liquidometer in each water sealed tank；Further include the controller respectively with electronic stop valve and liquidometer data connection, operating terminal HMI is also equipped on controller.The present invention can be reduced the labor intensity of personnel, monitors water sealed tank liquid level and automatic water supplement in real time, prevents furnace gas from leaking.
Description
Technical field
The present invention relates to iron content solid wastes to recycle control field, examines in real time more specifically to a kind of water seal tank of rotary hearth furnace
Examining system and its detection method.
Background technique
Rotary hearth furnace generally uses the material charging and discharging device of mechanization, and furnace roof, furnace wall are motionless, the heating furnace of furnace bottom rotation.Steel
Iron enterprise dirt mud total amount is generally the 8%~12% of output of steel, and the higher dust of the constituent contents such as zinc, sodium, potassium accounts for about steel plant
The 25%~30% of Dust Capacity, the high dust of these zinc, sodium, Determination of Potassium as directly return be sintered, it will cause zinc, sodium,
The enrichment of potassium element influences smooth operation of furnace and service life in turn.Rotary hearth furnace technology efficiently solves the problems, such as this, it is by dirt mud ingredient
After be reduced directly, generate direct reduced iron, and the elements such as zinc, sodium, potassium recycled in the form of dust, make the valuable gold in dirt mud
Category has obtained good recycling.
The gases such as CO can be generated in rotary hearth furnace in the Direct Reduction of carbonaceous pelletizing, water sealed tank need to keep certain liquid
Position prevents from revealing, avoids safety accident, while it is close that pressure different in rotary hearth furnace is also isolated for furnace gas to be isolated
Gaseous fluid is not in contact with the outer atmosphere of furnace in envelope region and guarantee furnace.In order to guarantee that liquid level is protected in side sealing slot inside and outside rotary hearth furnace
It holds in desired height, blast-furnace man needs every inspection in 2 hours, level condition in water sealed tank is checked one by one, as liquid level is high lower than requiring
Angle value, need to manually open water valve and carry out moisturizing, so recycle inspection, can not monitor water sealed tank real-time level in real time, increase
The labor intensity of personnel.
Summary of the invention
In view of the above defects of the prior art, the object of the present invention is to provide a kind of water seal tank of rotary hearth furnace to examine in real time
Examining system and its detection method can be reduced the labor intensity of personnel, monitor water sealed tank liquid level and automatic water supplement in real time, prevent in furnace
Gas leakage.
To achieve the above object, the present invention adopts the following technical scheme:
On the one hand, a kind of water seal tank of rotary hearth furnace real-time detecting system, including water seal general pipeline, coupled several logical water
Sealing groove further includes water seal general pipeline shut-off valve and several water seal straight tube pipelines on water seal general pipeline, every water seal straight tube pipe
Electronic stop valve is connected on road, water seal straight tube pipeline is connected to by electronic stop valve with corresponding water sealed tank, each water sealed tank
Inside it is equipped with liquidometer；
Further include the controller respectively with electronic stop valve and liquidometer data connection, is also equipped with operating terminal on controller
HMI。
Two water seal general pipeline are connected on the water seal general pipeline shut-off valve, a water seal general pipeline is located at rotary hearth furnace outer ring water seal
Groove location, another water seal general pipeline are located at rotary hearth furnace inner ring water seal groove location.
On the other hand, a kind of water seal tank of rotary hearth furnace real-time detection method, comprising the following steps:
1) the target level value of each water sealed tank is set by operating terminal HMI；
2) after controller receives target level value, adding water model control is carried out；
3) liquidometer detects actual liquid level value in water sealed tank, feeds back to controller, by controller by actual liquid level value with
Target level value is compared, and carries out PID adjusting, controls amount of water in water sealed tank.
If the actual liquid level value miss the mark level value, controller continues to control electronic stop valve unlatching, water seal
Slot adjusts plus water；If actual liquid level value is not greater than or equal to target level value, controller controls electronic stop valve and closes, water seal
Slot stops plus water.
If the actual liquid level value is equal to the 95% of target level value, controller controls electronic stop valve and closes, water seal
Slot stops plus water.
In the above technical solution, a kind of water seal tank of rotary hearth furnace real-time detecting system provided by the present invention and its detection
Method further promotes rotary hearth furnace process automatization level, monitors water sealed tank liquid level in real time, prevents furnace gas from leaking, and reduces
The working strength of operator has great importance.
Detailed description of the invention
Fig. 1 is the structural framing figure of water seal tank of rotary hearth furnace real-time detecting system of the present invention；
Fig. 2 is the flow chart of water seal tank of rotary hearth furnace real-time detection method of the present invention.
Specific embodiment
Technical solution of the present invention is further illustrated with reference to the accompanying drawings and examples.
Incorporated by reference to shown in Fig. 1, a kind of water seal tank of rotary hearth furnace real-time detecting system provided by the present invention, including water seal general pipeline
1, coupled several logical water sealed tanks 2, above-mentioned is prior art part, and details are not described herein again.Unlike the prior art
, further include the water seal general pipeline shut-off valve 3 being installed on water seal general pipeline 1 and several water seal straight tube pipelines 4, every water seal
Electronic stop valve 5 is mounted on straight tube pipeline 4, according to 7 sets requirement of controller, for controlling automatically adding water for water sealed tank 2
Amount, water seal straight tube pipeline 4 are connected to by electronic stop valve 5 with corresponding water sealed tank 2, are supplied water to water sealed tank 2, each water sealed tank 2
It is inside mounted on liquidometer 6, acquires liquid level in water sealed tank 2 in real time, and feeds back to controller 7 and carries out data analysis.
Preferably, further including that the controller 7 with 6 data connection of electronic stop valve 5 and liquidometer, controller 7 are used for respectively
Data processing and inversion is also equipped with operating terminal HMI8 on controller 7, is used for operator's start and stop equipment, corresponding work is arranged
Skill parameter.
Preferably, being connected with two water seal general pipeline 1 on the water seal general pipeline shut-off valve 3, a water seal general pipeline 2, which is located at, turns bottom
Furnace outer ring water seal groove location, another water seal general pipeline 1 are located at rotary hearth furnace inner ring water seal groove location.Water seal general pipeline shut-off valve 3 is used for
The water of two water seal general pipeline 1 is controlled, the water flow of two water seal general pipeline 1 can be cut off simultaneously, for overhauling.
Incorporated by reference to shown in Fig. 2, the present invention also provides a kind of water seal tank of rotary hearth furnace real-time detection methods, including following step
It is rapid:
1) the target level value of liquid level in each water sealed tank 2 is set by operating terminal HMI8；
2) after controller 7 receives target level value, adding water model control is carried out；
3) by actual liquid level value in liquidometer 6 real-time detection to water sealed tank 2, controller 7 is fed back to, it will by controller 7
Actual liquid level value is compared with target level value, carries out PID adjusting, controls amount of water in water sealed tank 2.
If preferably, the actual liquid level value miss the mark level value, controller 7 continues to control electronic stop valve 5
It opens, automatic adjustment plus water in water sealed tank 2；If actual liquid level value is not greater than or equal to target level value, controller 7 controls electricity
Dynamic stop valve 5 is closed, and stops adding water in water sealed tank 2.
If controller 7 controls electronic stop valve 5 preferably, the actual liquid level value is equal to the 95% of target level value
It closes, stops adding water in water sealed tank 2.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above
Change, modification will all be fallen within the scope of claims of the present invention.
Claims (5)
1. a kind of water seal tank of rotary hearth furnace real-time detecting system, including water seal general pipeline, coupled several logical water sealed tanks are special
Sign is: further including the water seal general pipeline shut-off valve and several water seal straight tube pipelines on water seal general pipeline, every water seal straight tube
Electronic stop valve is connected on pipeline, water seal straight tube pipeline is connected to by electronic stop valve with corresponding water sealed tank, each water seal
Liquidometer is equipped in slot；
Further include the controller respectively with electronic stop valve and liquidometer data connection, operating terminal HMI is also equipped on controller.
2. a kind of water seal tank of rotary hearth furnace real-time detecting system as described in claim 1, it is characterised in that: the water seal general pipeline cut-off
Two water seal general pipeline are connected on valve, a water seal general pipeline is located at rotary hearth furnace outer ring water seal groove location, another position water seal general pipeline
In rotary hearth furnace inner ring water seal groove location.
3. one kind water seal tank of rotary hearth furnace real-time detection method as described in claim any one of 1-2, it is characterised in that: including following
Step:
1) the target level value of each water sealed tank is set by operating terminal HMI；
2) after controller receives target level value, adding water model control is carried out；
3) liquidometer detects actual liquid level value in water sealed tank, feeds back to controller, by controller by actual liquid level value and target
Level value is compared, and carries out PID adjusting, controls amount of water in water sealed tank.
4. a kind of water seal tank of rotary hearth furnace real-time detection method as claimed in claim 3, it is characterised in that: if the actual liquid level value
Miss the mark level value, then controller continues to control electronic stop valve unlatching, and water sealed tank adjusts plus water；If actual liquid level value is not
More than or equal to target level value, then controller controls electronic stop valve and closes, and water sealed tank stops plus water.
5. a kind of water seal tank of rotary hearth furnace real-time detection method as claimed in claim 4, it is characterised in that: if the actual liquid level value
Equal to the 95% of target level value, then controller controls electronic stop valve and closes, and water sealed tank stops plus water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910801230.0A CN110470148A (en) | 2019-08-28 | 2019-08-28 | A kind of water seal tank of rotary hearth furnace real-time detecting system and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910801230.0A CN110470148A (en) | 2019-08-28 | 2019-08-28 | A kind of water seal tank of rotary hearth furnace real-time detecting system and its detection method |
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| Publication Number | Publication Date |
|---|---|
| CN110470148A true CN110470148A (en) | 2019-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910801230.0A Pending CN110470148A (en) | 2019-08-28 | 2019-08-28 | A kind of water seal tank of rotary hearth furnace real-time detecting system and its detection method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042335A (en) * | 2015-06-04 | 2015-11-11 | 太原理工大学 | Low-concentration gas pipeline conveying process monitoring and protecting system based on network |
| CN205771040U (en) * | 2016-06-30 | 2016-12-07 | 长兴化学（天津）有限公司 | A kind of water sealed tank |
| CN206535294U (en) * | 2017-02-10 | 2017-10-03 | 长乐力恒锦纶科技有限公司 | A kind of new water sealed tank of polymerization plant |
| CN208493798U (en) * | 2018-05-31 | 2019-02-15 | 贵州力能新能源有限公司 | Ammonia nitrogen exhaust gas automatic water sealing arrangement |
-
2019
- 2019-08-28 CN CN201910801230.0A patent/CN110470148A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042335A (en) * | 2015-06-04 | 2015-11-11 | 太原理工大学 | Low-concentration gas pipeline conveying process monitoring and protecting system based on network |
| CN205771040U (en) * | 2016-06-30 | 2016-12-07 | 长兴化学（天津）有限公司 | A kind of water sealed tank |
| CN206535294U (en) * | 2017-02-10 | 2017-10-03 | 长乐力恒锦纶科技有限公司 | A kind of new water sealed tank of polymerization plant |
| CN208493798U (en) * | 2018-05-31 | 2019-02-15 | 贵州力能新能源有限公司 | Ammonia nitrogen exhaust gas automatic water sealing arrangement |
Non-Patent Citations (1)
| Title |
|---|
| 王永奎: "《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191119 |
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| RJ01 | Rejection of invention patent application after publication |