CN112129257B - Method for detecting closing position of coke oven door - Google Patents
Method for detecting closing position of coke oven door Download PDFInfo
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- CN112129257B CN112129257B CN201910553475.6A CN201910553475A CN112129257B CN 112129257 B CN112129257 B CN 112129257B CN 201910553475 A CN201910553475 A CN 201910553475A CN 112129257 B CN112129257 B CN 112129257B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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Abstract
The invention discloses a method for detecting the closing position of a coke oven door, which utilizes a detection element to detect the distance change between a door-taking machine and the oven door, thereby obtaining the data change condition of the oven door before the door is taken and after the door is closed, then leads the data into a database, and judges the current state of the oven door through the processing of a data processing system. When the door is closed, the door-taking machine can retreat only after the door is judged to be closed in place. The invention can realize automatic and high-efficiency judgment of whether the furnace door is closed in place during the operation of closing the furnace door, meets the safety requirement of the operation of the coke pusher, avoids the accident of dropping the furnace door, and is also an important component of unmanned operation of the coke pusher.
Description
Technical Field
The invention relates to a detection technology of a closed state of an oven door after coke pushing operation of a coke oven, in particular to a detection method of a closed position of the oven door of the coke oven.
Background
The coke pushing operation of the coke oven is completed by the cooperation of a coke pusher, a coke guide, a coal charging car and a coke quenching car. The coke pusher opens the side furnace door of the coking chamber, the coke guide car opens the coke side furnace door of the coking chamber, and after the coke pushing operation is completed, the coke pusher and the coke guide car need to close the opened furnace door respectively. As shown in figure 1, when the furnace door is closed, whether a furnace door cross bar 1 falls into a claw 3 of a furnace door frame 2 or not is mainly observed manually, namely whether the furnace door is closed in place or not is judged, after the furnace door is confirmed to be closed in place, a door taking machine is retracted, and then the next furnace number operation is started.
And referring to fig. 1 and 2, the door taking action step of the door taking machine:
1) after the vehicle is aligned with the furnace door and stops running, the door-taking machine starts to advance until the door-taking machine advances in place, and at the moment, the door-taking hook 4 is positioned below the furnace door lifting lever 5;
2) the door lifting oil cylinder 6 acts to lift the door to the door hook position until the door lifting hook 4 hooks the door lifting lever 5 of the oven door, and at the moment, the door lifting machine is tightly contacted with the oven door, but the oven door is not moved;
3) the upper and lower pressing bolt oil cylinders 7 and 8 of the door operator extend out, and the upper and lower pressing bolts horizontally separate the transverse iron 1 of the furnace door from the horn 3 of the furnace door frame 2;
4) the door lifting oil cylinder 6 carries out the action of lifting the door to the door lifting position, after the door is in place, the furnace door cross iron 1 is moved out of the claw 3 of the furnace door frame 2 in the vertical direction, and at the moment, the furnace door is lifted out of the furnace door frame hook;
5) the door taking machine drives the furnace door to retreat until the door taking machine stops in a limited mode.
Door closing action of the door taking machine:
1) after the operation in the furnace is finished, the door taking machine starts to advance until the door taking machine advances for limiting;
2) the door lifting oil cylinder 6 of the door lifter starts to perform the action of door falling to the door hook position, and after the door falling is finished, the furnace door cross bar 1 falls into the claw 3 of the furnace door frame 2;
3) the door taking machine upper and lower pressing bolt oil cylinders 7 and 8 retract, and the furnace door cross iron 1 extends to prop against the goat's horn 3 of the furnace door frame 2;
4) the door lifting oil cylinder 6 performs the action of lowering the door to the lower limit, and after the door is in place, the door hook 4 is completely separated from the door lifting lever 5 of the furnace door;
5) and the door taking machine retreats until the door taking machine stops at a limited position.
If the furnace door is not closed in place, the door-taking machine retreats, so that the furnace door falls down from the furnace door frame, and further, heavy equipment loss and even personal injury are caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for detecting the closing position of the oven door of a coke oven, which can automatically and efficiently judge whether the oven door is closed in place during the operation of closing the oven door, meets the safety requirement of the operation of a coke pusher, avoids the accident of dropping the oven door and is an important component of the unmanned operation of the coke pusher.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for detecting the closing position of a coke oven door comprises the following steps:
an analog quantity sensor is arranged on the door taking hook and used for detecting the distance between the door taking hook and the door lifting lever of the furnace door, and a sensor is arranged in a door lifting oil cylinder;
after the door-taking machine finishes the action of taking the door to the door hook position in the door-taking operation, before the door-taking machine presses the upper and lower door latches and is not pressed, the numerical value S of the analog quantity sensor is recorded through the program control in the coke pusher PLC at the moment1And the value S of the lift cylinder sensor2；
When the door-taking machine completes the action of falling door to the hook position in the door-closing operation, and after the upper and lower door latch oil cylinders of the door-taking machine retract to the right position, the numerical value S of the analog quantity sensor is recorded3And the value S of the lift cylinder sensor4；
The height deviation Delta S change condition of the furnace door before and after the door is closed is obtained by calculating the measured data, and the formula is as follows:
ΔS＝S3+S4-S1-S2
if Δ S > 0, the oven door is raised, if Δ S < 0, the oven door is lowered, and if Δ S is 0, the front and rear oven door states are consistent.
Get a machine get a door operation flow, specifically as follows:
1) the vehicle arrives at the operation furnace number;
2) the door taking machine advances to the front limit;
3) the door lifting oil cylinder lifts the door to the door hook position;
4) recording the value S of the analog sensor1And the value S of the lift cylinder sensor2；
5) PLC judges S1If the current position is within the normal range, continuing to execute the next step, and if not, stopping the action of the door lifting oil cylinder;
6) the upper and lower pressing bolts extend out to the front limit;
7) lifting the door to a lifting position by a lifting oil cylinder;
8) the door taking machine retreats to the rear limit.
The door closing operation flow of the door taking machine is as follows:
1) the coke pushing operation is finished;
2) the door taking machine advances to the front limit;
3) lifting the door oil cylinder, and falling the door to the door hook position;
4) the upper and lower compression bolts retract to the rear limit position;
5) recording the value S of the analog sensor3And the value S of the lift cylinder sensor4；
6) The PLC records the height deviation Delta S of the furnace door at this time, calls corresponding furnace door change data in the database to perform accumulated calculation sigma Delta S for judgment, if yes, continues to execute the next step, and if not, stops the action of the door lifting oil cylinder;
7) lifting the door oil cylinder and lowering the door to a lower limit;
8) the door taking machine retreats to the rear limit.
In said step 5, S1< 20mm is1If the data is not less than 20mm, stopping the action of the door lifting oil cylinder, manually confirming on site, and making no record when the data is abnormal.
In the step 6, if sigma delta S is less than 20mm, if sigma delta S is more than or equal to 20mm, the door lifting oil cylinder stops acting, the door lifting oil cylinder is confirmed manually on site, abnormal intervention is found, the furnace door is placed to the bottom through manual operation, and the change data of the furnace door in the operation is cleared.
The method for detecting the closing position of the coke oven door provided by the invention realizes the automatic detection of the in-place closing of the oven door, supplements the safety interlocking condition of the door taking machine operation, perfects the automatic operation function of the door taking machine, replaces the original manual confirmation judgment, and avoids the falling accident of the oven door caused by the manual judgment error. The practical application of the invention lays a foundation for realizing the unmanned operation of the coke pusher and the coke guide.
Drawings
FIG. 1 is a schematic view of a cross bar and a ram's horn of a conventional oven door;
FIG. 2 is a schematic view of a door-taking head structure of a door-taking machine;
FIG. 3 is a schematic view of the installation of an analog sensor in the detection method of the present invention;
FIG. 4 is a flow chart of the door picking operation of the door picking machine in the detection method of the present invention;
FIG. 5 is a flow chart illustrating the door closing operation of the door operator according to the detecting method of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
Referring to fig. 3, the method for detecting the door closing position of a coke oven provided by the present invention comprises:
a non-contact analog sensor 9 with shielding is used for measuring the vertical distance between the detection surface of the sensor and a metal element, the output signal of the sensor is not influenced by the surrounding metal elements, the sensor can normally work in the environment of high temperature and high dust in the front of a furnace, and the sensor has good anti-interference capability.
An analog quantity sensor 9 is arranged on the door taking hook 10 and used for detecting the distance between the door taking hook 10 and the door lifting lever 11 of the furnace door, and an MTS sensor is arranged in the door lifting oil cylinder 12.
After the door-taking machine finishes the action of taking the door to the door hook position in the door-taking operation, before the upper and lower pressure door latches of the door-taking machine are not pressed, the numerical value S of the analog quantity sensor 9 is recorded through the program control in the coke pusher PLC at the moment1And the value S of the lift cylinder sensor2。
When the door-taking machine finishes the action of falling to the hook position during the door-closing operation, after the door-taking machine up and down presses the latch oil cylinders 13 and 14 to retract to the right position, the numerical value S of the analog quantity sensor 9 at the moment is recorded3And the value S of the lift cylinder sensor4。
When data are recorded, the door taking hook 10 of the door taking head hooks the door lifting lever 11 of the furnace door, the furnace door is in close contact with the door taking machine, but the furnace door is not lifted by the door taking machine. Because the door-taking machine takes the action of lifting the door by the inner frame, the outer frame 15 is kept still, when the door-taking machine is lifted to the door hook position and the door latch is not pressed, the position of the outer frame 15 can be considered to be kept unchanged before the door is taken and after the door is closed. At this time, the change situation of the height deviation Delta S of the furnace door before and after the door is closed is obtained by calculating the measured data, and the formula is as follows:
ΔS＝S3+S4-S1-S2
if Δ S > 0, the oven door is raised, if Δ S < 0, the oven door is lowered, and if Δ S is 0, the front and rear oven door states are consistent.
Before formula calculation, validity of measured data needs to be verified, when a door is lifted to a door hook position, a distance range between a door hook 10 and a door lifting lever 11 is fixed, a range value needs to be set to verify the distance range, if the distance range is not within the range, data abnormity can be considered not to be recorded, and meanwhile, an alarm is given to inform personnel to go to the site to check and confirm the state. After effective furnace door height change condition data are obtained, a database associated with furnace numbers is established, initial data of the furnace doors are set to be zero, then height changes of corresponding furnace doors each time are recorded, and the data are subjected to continuous accumulation processing, if the accumulated value of the current operation furnace numbers exceeds a set range, the situation that the furnace doors are too high and are not closed in place is possibly caused, the next action of the vehicle is stopped, an alarm is sent to inform a worker to confirm on site, and the accident that the furnace doors fall off due to the fact that the door machine is taken out and retreats when the furnace doors are not closed in place is avoided. After the personnel confirm the field state, the furnace door and the furnace frame are cleaned, the furnace door is manually operated to the bottom, and then the accumulated value of the furnace door change data corresponding to the furnace number is cleared through a data reset button set on the picture, so that the data abnormity caused by manual intervention is eliminated, and the accuracy of the data is ensured.
As shown in fig. 4, the door picking operation flow of the door picking machine is as follows:
1) the vehicle reaches the operation furnace number;
2) the door taking machine advances to the front limit;
3) the door lifting oil cylinder 12 lifts the door to the door hook position;
4) recording the value S of the analog sensor 91And the value S of the lift cylinder sensor2；
5) PLC judges S1If the current position is within the normal range, continuing to execute the next step, and if not, stopping the action of the door lifting oil cylinder 12;
6) the upper and lower pressing bolts extend out to the front limit;
7) the door lifting oil cylinder 12 lifts the door to a door lifting position;
8) the door taking machine retreats to the rear limit.
As shown in fig. 5, the door closing operation flow of the door operator is as follows:
1) the coke pushing operation is finished;
2) the door taking machine advances to the front limit;
3) the door lifting oil cylinder 12 falls to a door hook position;
4) the upper and lower compression bolts retract to the rear limit position;
5) recording the value S of the analog sensor 93And the value S of the lift cylinder sensor4；
6) The PLC records the height deviation Delta S of the furnace door at this time, calls corresponding furnace door change data in the database to perform accumulated calculation sigma Delta S for judgment, if yes, continues to execute the next step, and if not, stops the action of the door lifting oil cylinder;
7) lifting the door oil cylinder and lowering the door to a lower limit;
8) the door taking machine retreats to the rear limit.
Preferably, in step 5 of the door-taking operation flow of the door-taking machine, S1< 20mm is1If the data is not less than 20mm, stopping the action of the door lifting oil cylinder, manually confirming the data abnormality on site, and not recording.
Preferably, in step 6 of the door closing operation flow of the door taking machine, if Σ Δ S is smaller than 20mm, and if Σ Δ S is larger than or equal to 20mm, the door lifting oil cylinder stops acting, manual field confirmation is performed, abnormal intervention is found, the furnace door is placed to the bottom through manual operation, and the change data of the furnace door in the operation is cleared.
In conclusion, the automatic and unmanned production operation of the coke oven is the main direction of the development of the current coking technology, the realization of the unmanned operation of the four large cars of the coke oven is the inevitable requirement of the development of the four large cars of the coke oven, the detection method has the advantages of low investment and excellent effect, can ensure the operation safety of the door taking machine and improve the operation efficiency, and is an important component of the unmanned operation of the coke pushing car and the coke guide car.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (4)
1. A method for detecting the closing position of a coke oven door is characterized by comprising the following steps:
an analog quantity sensor is arranged on the door taking hook and used for detecting the distance between the door taking hook and the door lifting lever of the furnace door, and a sensor is arranged in a door lifting oil cylinder;
after the door-taking machine finishes the action of taking the door to the door hook position in the door-taking operation, before the upper and lower pressure door latches of the door-taking machine are not pressed, the numerical value S of the analog quantity sensor at the moment is recorded through the program control in the coke pusher PLC1And the value S of the lift cylinder sensor2；
When the door-taking machine completes the action of falling door to the hook position in the door-closing operation, and after the upper and lower door latch oil cylinders of the door-taking machine retract to the right position, the numerical value S of the analog quantity sensor is recorded3And the value S of the lift cylinder sensor4；
The height deviation Delta S change condition of the furnace door before and after the door is closed is obtained by calculating the measured data, and the formula is as follows:
ΔS＝S3+S4-S1-S2
if deltaS is more than 0, the furnace door is raised, if deltaS is less than 0, the furnace door is lowered, if deltaS is 0, the front and rear furnace doors are consistent in state,
wherein, get a machine operation flow, specifically as follows:
1) the vehicle reaches the operation furnace number;
2) the door taking machine advances to the front limit;
3) the door lifting oil cylinder lifts the door to the door hook position;
4) recording the value S of the analog sensor1And the value S of the lift cylinder sensor2；
5) PLC judges S1If the current position is within the normal range, continuing to execute the next step, and if not, stopping the action of the door lifting oil cylinder;
6) the upper and lower pressing bolts extend out to the front limit;
7) the door lifting oil cylinder lifts the door to a door lifting position;
8) the door taking machine retreats to the rear limit.
2. The method of claim 1 for detecting the door closing position of a coke oven, wherein: the door closing operation flow of the door taking machine is as follows:
1) the coke pushing operation is finished;
2) the door taking machine advances to the front limit;
3) lifting the door oil cylinder to fall to the door hook position;
4) the upper and lower compression bolts retract to the rear limit position;
5) recording the value S of the analog sensor3And the value S of the lift cylinder sensor4；
6) The PLC records the height deviation Delta S of the furnace door at this time, calls corresponding furnace door change data in the database to perform accumulated calculation sigma Delta S for judgment, if yes, continues to execute the next step, and if not, stops the action of the door lifting oil cylinder;
7) lifting the door oil cylinder and lowering the door to a lower limit;
8) the door taking machine retreats to the rear limit.
3. The method of claim 1 for detecting the door closing position of a coke oven, wherein: in said step 5, S1< 20mm is1If the data is not less than 20mm, stopping the action of the door lifting oil cylinder, manually confirming the data abnormality on site, and not recording.
4. The method of claim 2, wherein the method further comprises the steps of: in the step 6, if the sigma delta S is smaller than 20mm, if the sigma delta S is larger than or equal to 20mm, the door lifting oil cylinder stops acting, the abnormal intervention is found through manual field confirmation, the furnace door is placed to the bottom through manual operation, and the change data of the furnace door in the operation is cleared.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910553475.6A CN112129257B (en) | 2019-06-25 | 2019-06-25 | Method for detecting closing position of coke oven door |
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| CN201910553475.6A CN112129257B (en) | 2019-06-25 | 2019-06-25 | Method for detecting closing position of coke oven door |
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| CN112129257A CN112129257A (en) | 2020-12-25 |
| CN112129257B true CN112129257B (en) | 2022-06-21 |
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| CN113355111B (en) * | 2021-07-06 | 2022-10-14 | 广东韶钢松山股份有限公司 | Door taking mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07207270A (en) * | 1994-01-12 | 1995-08-08 | Nkk Corp | Method and apparatus for detecting center of cover of coke oven |
| CN201165504Y (en) * | 2008-02-25 | 2008-12-17 | 大连华锐股份有限公司 | Furnace door switch device having memory function |
| CN202688259U (en) * | 2012-06-28 | 2013-01-23 | 攀钢集团西昌钢钒有限公司 | Door taking device of coke oven vehicle |
| CN203820693U (en) * | 2014-05-04 | 2014-09-10 | 攀钢集团西昌钢钒有限公司 | Maintenance device for maintaining coke oven door |
| CN105486088A (en) * | 2014-09-18 | 2016-04-13 | 宝山钢铁股份有限公司 | Heating furnace and furnace door opening and closing control method thereof |
-
2019
- 2019-06-25 CN CN201910553475.6A patent/CN112129257B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07207270A (en) * | 1994-01-12 | 1995-08-08 | Nkk Corp | Method and apparatus for detecting center of cover of coke oven |
| CN201165504Y (en) * | 2008-02-25 | 2008-12-17 | 大连华锐股份有限公司 | Furnace door switch device having memory function |
| CN202688259U (en) * | 2012-06-28 | 2013-01-23 | 攀钢集团西昌钢钒有限公司 | Door taking device of coke oven vehicle |
| CN203820693U (en) * | 2014-05-04 | 2014-09-10 | 攀钢集团西昌钢钒有限公司 | Maintenance device for maintaining coke oven door |
| CN105486088A (en) * | 2014-09-18 | 2016-04-13 | 宝山钢铁股份有限公司 | Heating furnace and furnace door opening and closing control method thereof |
Non-Patent Citations (2)
| Title |
|---|
| PLC在焦车定位与连锁控制系统中的应用;马明前 等;《中国仪器仪表》;20071231(第4期);第57-60页 * |
| 数字定位系统在焦炉三大机车上的应用;于振东 等;《燃料与化工》;20070930;第38卷(第5期);第25-26页 * |
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