CN112063391A - Speed regulation control method and control device of dust removal fan and coke pusher - Google Patents
Speed regulation control method and control device of dust removal fan and coke pusher Download PDFInfo
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- CN112063391A CN112063391A CN202011006512.0A CN202011006512A CN112063391A CN 112063391 A CN112063391 A CN 112063391A CN 202011006512 A CN202011006512 A CN 202011006512A CN 112063391 A CN112063391 A CN 112063391A
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- door
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B43/00—Preventing or removing incrustations
- C10B43/02—Removing incrustations
- C10B43/04—Removing incrustations by mechanical means
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B33/00—Discharging devices; Coke guides
- C10B33/08—Pushers, e.g. rams
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
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Abstract
The embodiment of the application provides a speed regulation control method and control equipment of a dust removal fan and a coke pusher, and the method comprises the following steps: judging whether the coke pusher opens the furnace door of the planned furnace number in the production state; when the coke pusher is determined to open the furnace door of the planned furnace number in the production state, determining that the current moment meets the speed-up condition, and outputting a speed-up signal to a controller of a dust removal fan so that the controller of the dust removal fan controls the dust removal fan to increase the rotating speed according to the speed-up signal; controlling the coke pusher to carry out coal leveling operation on the last furnace number, wherein the acceleration time required by the dust removal fan for accelerating to the set target speed is less than the coal leveling operation time; and when the coal leveling operation process is finished, controlling a coke pushing rod of the coke pusher to advance so as to carry out coke pushing operation on the planned furnace number. Therefore, the problem that the dedusting effect is influenced because the high-speed operation time of the dedusting fan is difficult to match with the coke discharging process in the prior art can be solved.
Description
Technical Field
The application relates to the technical field of coke oven production equipment, in particular to a speed regulation control method and control equipment of a dust removal fan and a coke pusher.
Background
In the field of coking production, when a coking plant carries out operations such as coal charging, coke discharging and the like, a large amount of dust and smoke dust are generated in the production environment of a coke oven.
In order to reduce pollution and improve the field production environment of the coke oven, a dust removal fan is adopted for removing dust, for example, the dust removal fan is adopted for absorbing dust in the process of pushing a coke cake by a coke pusher. Therefore, the dust removal fan is an important device in the coking production process.
The working process of the dust removal fan is as follows: the coke pusher produces a large amount of high-temperature flue gas containing coke powder in the process of pushing coke or coke cakes out of the coking chamber according to a discharge plan, and the high-temperature flue gas enters a dust collecting pipeline after being collected by a large-scale air suction cover on the coke guide grid and then is purified and dedusted by a dedusting fan rotating at a high speed. After the coke pushing is finished, the dust removal fan needs to be switched from high-speed operation to low-speed operation. After the coke pusher finishes the operation of retreating the coke pushing rod, opening the furnace door, leveling coal, closing the furnace door and the like, the coke pusher moves to a carbonization chamber corresponding to the next furnace number, then the coke pushing work is continued, the dust removal fan is switched from the low-speed operation to the high-speed operation, the dust removal process of the coke discharging flue gas is continuously finished in the high-speed state, and the high-speed and low-speed circular production is sequentially carried out according to the discharge plan of the coke oven.
At present, the speed regulation signals of the high-speed and low-speed operation of the dust removal fan are controlled by a coke pushing rod advancing contactor of a coke pusher, and the control principle is as follows: and when the coke pushing rod moves forward, sending a speed regulating signal for controlling the high-speed operation of the dust removal fan, and when the coke pushing rod moves forward in place, stopping sending the speed regulating signal to reduce the speed of the dust removal fan. The processing mode can cause that the high-speed operation time of the dust removal fan is difficult to match with the coke discharging process, thereby causing that the dust removal effect is weak.
Disclosure of Invention
The application aims to provide a speed regulation control method and control equipment of a dust removal fan and a coke pusher, which can solve the problem that the dust removal effect is influenced because the high-speed operation time of the dust removal fan is difficult to match with the coke discharging process in the prior art.
In a first aspect, an embodiment of the present application provides a speed regulation control method for a dust removal fan, where the method includes:
judging whether the coke pusher opens the furnace door of the planned furnace number in the production state;
when the coke pusher is determined to open the furnace door of the planned furnace number in the production state, determining that the current moment meets the speed-up condition, and outputting a speed-up signal to a controller of a dust removal fan so that the controller of the dust removal fan controls the dust removal fan to increase the rotating speed according to the speed-up signal;
controlling the coke pusher to carry out coal leveling operation on the last furnace number, wherein the acceleration time required by the dust removal fan for accelerating to the set target speed is less than the coal leveling operation time;
and when the coal leveling operation process is finished, controlling a coke pushing rod of the coke pusher to advance so as to carry out coke pushing operation on the planned furnace number.
In the method, before the coke pushing rod of the coke pusher is controlled to advance, the moment when the coke pusher is determined to open the furnace door with the planned furnace number in the production state is taken as the speed-increasing trigger time, the speed-increasing signal is output to the controller of the dust-removing fan, and the acceleration time of the dust-removing fan is less than the coal leveling operation time, so that the dust-removing fan has enough time to increase the rotating speed to the target speed before the coke pusher really performs the coke pushing action. Therefore, when the coke pusher carries out coke pushing action, the dust removal fan is already in a high-speed running state, the problem that the high-speed running time of the dust removal fan is difficult to match with the coke discharging process can be solved, and even if the slope acceleration time of a frequency converter of the dust removal fan is longer than the coke pushing time of a coke pushing rod from the beginning to the stopping of the advancing, the acceleration time of the dust removal fan is shorter than the coal leveling operation time, the dust removal fan can be ensured to be lifted to the target speed before the coke pushing rod advances, so that the dust removal fan can timely and fully remove dust for the coke discharging process of the planned furnace number at the optimal running speed.
In an alternative embodiment, the method further comprises:
detecting whether the coke pushing rod advances to the right position and stops;
and when the situation that the coke pushing rod is detected to advance to the right position and stop is detected, outputting a speed reduction signal to a controller of the dust removal fan, so that the controller of the dust removal fan controls the dust removal fan to reduce the rotating speed according to the speed reduction signal.
Through the implementation mode, when the dust removal fan is detected to stop moving forward in place before the coke pushing rod moves forward, the dust removal fan is controlled to start to reduce the speed, and the dust removal fan can be controlled to reduce the speed in time when the coke pushing cart finishes pushing coke for the planned furnace number, so that the dust removal fan can fully remove dust at the optimal target speed in the whole coke pushing process of the planned furnace number, and resource waste caused by unnecessary high-speed operation of the dust removal fan after the coke pushing is finished can be avoided.
In an optional embodiment, after detecting that the pushing ram is stopped from advancing to the right position and outputting a speed reduction signal to the controller of the dust removal fan, the method further comprises:
controlling the pushing ram to retreat, and detecting whether the pushing ram retreats in place and stops;
and when the situation that the coke pushing rod retreats to the right position and stops is detected, controlling the coke pusher to close the furnace door of the planned furnace number.
In the above implementation, the dust removal fan may start to decelerate based on the deceleration signal before the furnace door of the planned furnace number is closed.
In an alternative embodiment, after controlling the coke pusher to close the oven door of the planned oven number, the method further comprises:
controlling the coke pusher to move to a carbonization chamber corresponding to the next furnace number;
and when the coke pusher is detected to move to the carbonization chamber corresponding to the next furnace number and stops moving, taking the next furnace number as a new planned furnace number, and repeatedly executing the step of judging whether the coke pusher opens the furnace door of the planned furnace number to control the coke pusher to move to the carbonization chamber corresponding to the next furnace number in the production state.
Through the implementation mode, the dust removal fan is controlled to switch between high and low rotating speeds according to an ordered production plan under the multi-furnace production scene of sequential production, the high-speed operation time of the dust removal fan can be guaranteed to be enough to meet the coke discharging process of each furnace number, and sufficient dust removal effects are brought to each furnace number in different time periods.
In an optional embodiment, the determining whether the coke pusher opens the oven door of the planned oven number in the production state includes:
when the coke pusher is determined to be in a production state, detecting whether a door-taking machine of the coke pusher completes door-opening operation on the planned furnace number currently;
and when detecting that the door opening operation of the door taking machine for the planned furnace number is finished in the production state, determining that the coke pusher opens the furnace door of the planned furnace number in the production state.
Through the implementation mode, the implementation mode can be used for determining the timing for sending the speed-up signal, and the timing for sending the speed-up signal is before the pushing rod advances to realize pushing.
In an optional embodiment, the detecting whether the door operator of the coke pusher completes the door opening operation for the planned furnace number currently includes:
detecting whether a furnace door is currently arranged on the door taking machine or not and detecting whether the door taking machine is in a rear limit in-place state or not;
when the fact that the door of the door taking machine is currently arranged and the door taking machine is in a rear limit in-place state is determined, a rear limit in-place count value currently corresponding to the door taking machine is obtained;
and when the rear limit in-place count value currently corresponding to the door-taking machine is a target value, determining that the door-taking machine has currently completed door-opening operation on the planned furnace number.
Through the implementation mode, misoperation on the dust removal fan can be avoided when the door taking machine closes the door to the planned furnace number, the dust removal fan can be prevented from being accelerated after the furnace door of the planned furnace number is closed, unnecessary consumption of the dust removal fan can be avoided, and energy can be saved.
In an optional embodiment, before obtaining the rear limit in-place count value currently corresponding to the door fetching machine, the method further includes:
if the fact that the coke pushing rod stops moving in place is detected, clearing a rear limit in-place count value of the door extractor;
under the condition that the rear limit in-place count value of the door extractor is zero, if the situation that the coke pushing rod retreats to the place and stops and the door extractor is in the rear limit in-place state after the situation that the coke pushing rod retreats to the place and stops is detected for the first time, setting the rear limit in-place count value of the door extractor as a first preset value;
under the condition that the rear limit in-place count value of the door picking machine is the first preset value, if the door picking machine is detected to be in a rear limit in-place state again, setting the rear limit in-place count value of the door picking machine as the target value;
when the rear limit in-place count value is zero, the last furnace number is represented to finish the coke pushing operation, when the rear limit in-place count value is the first preset value, the furnace door of the last furnace number is represented to be closed by the coke pusher, and when the rear limit in-place count value is the target value, the coke pusher is represented to be moved from the last furnace number to the planned furnace number, and the furnace door of the planned furnace number is represented to be opened by the coke pusher.
Through above-mentioned implementation, provide one kind and can target in place the count value to the back limit of getting a machine and carry out the implementation that updates, based on this implementation, be favorable to matcing dust exhausting fan's high-speed operation time and the play burnt process of actual plan stove number, can avoid as far as possible too early or too late with dust exhausting fan acceleration and cause the energy extravagant.
In an alternative embodiment, the method further comprises:
detecting whether an oil pump motor of the coke pusher runs or not, and detecting whether the coke pusher stops moving or not;
and when the operation of an oil pump motor of the coke pusher is determined, the coke pusher stops moving, a furnace door is arranged on the door-taking machine, the door-taking machine is in a rear limit in-place state, and when the rear limit in-place count value currently corresponding to the door-taking machine is the target value, the coke pusher is determined to open the furnace door with the planned furnace number in the production state.
Through the implementation mode, the coke pusher is judged whether to just open the furnace door of the planned furnace number in the production state by combining various detection condition combinations, so that unnecessary speed-up signals can be prevented from being sent to a controller of the dust removal fan in the non-production state, and the energy consumption can be reduced.
In a second aspect, an embodiment of the present application provides a control apparatus, including:
a memory;
a processor;
the memory has stored thereon a computer program which, when executed by the processor, performs the method of the first aspect as set forth above.
In a third aspect, embodiments of the present application provide a coke pusher on which the control apparatus of the second aspect is arranged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic diagram of a control principle of a dust removal fan in the prior art.
Fig. 2 is a flowchart of a coke pusher according to an embodiment of the present disclosure.
Fig. 3 is a control schematic diagram of an example of the door extractor operating the oven door according to the embodiment of the present application.
Fig. 4 is a flowchart of a speed control method of a dust removal fan according to an embodiment of the present application.
Fig. 5 is a partial flowchart of a speed control method for a dust removal fan according to an embodiment of the present application.
Fig. 6 is another partial flowchart of a speed control method for a dust removal fan according to an embodiment of the present application.
Fig. 7 is a flowchart of another part of the speed control method of the dust removal fan according to the embodiment of the present application.
Fig. 8 is a schematic diagram of a count value update according to an embodiment of the present application.
Fig. 9 is a functional structure block diagram of a control device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a control principle of a dust removing fan in the prior art.
As shown in fig. 1, in the prior art, a coke pusher is provided with a forward contactor KM1 and a backward contactor KM2, a pushing rod of the coke pusher changes a traveling direction under the control of a motor M, and the motor M operates in an AC power supply scene (the "AC 380V" in fig. 1 represents a 380V AC power supply). The auxiliary contact (switch) of the forward contactor KM1 is matched with a system for controlling the rotation of the dust removing fan 200 to complete the speed regulation control of the dust removing fan 200.
When the pushing ram advances under the control of the motor M, the advancing contactor KM1 is electrified and attracted, so that the auxiliary contact (switch) of the advancing contactor KM1 is turned on. At this time, the speed regulation signal IN is transmitted to the controller of the dust removal fan 200 through the first fuse FU1, the auxiliary contact of the forward contactor KM1 IN a conducting state, the ground board 101, and the fourth conductive rail 102 of the coke oven system. The Controller body is a Programmable Logic Controller (PLC). The controller receives the speed regulating signal IN and sends a speed increasing instruction to the frequency converter of the dust removing fan 200, so that the frequency converter of the dust removing fan 200 increases the output frequency to 42Hz, and the rotating speed of the dust removing fan is increased to 800 r/min.
When the pushing ram advances to the right position, the power of the advancing contactor KM1 is lost, the pushing ram stops advancing, the pushing is finished, and the auxiliary contact (switch) of the advancing contactor KM1 is disconnected. At this moment, the speed regulating signal which is originally transmitted to the controller through the conducted auxiliary contact is changed (can be considered to disappear), so that the controller stops sending the speed increasing instruction or sends the speed reducing instruction, the frequency converter reduces the output frequency to 20Hz, and the rotating speed of the dust removing fan is reduced to 387 r/min.
The inventor finds that the above treatment mode has the following defects:
firstly, the speed regulation signal IN is sent depending on the power-on and power-off switching condition of the forward contactor KM1, but IN some application scenarios, even if the coke pusher is not performing the coke pushing operation IN the production state, for example, when the coke pusher is overhauled and debugged, the forward and backward matching of the coke pusher is also controlled to complete the overhaul or debugging, IN this case, the forward contactor KM1 is also switched to the power-on and power-off state, which may cause the dust removal fan to raise the rotating speed when the coke pusher is overhauled and debugged, and may cause unnecessary resource consumption when the coke pusher is not performing the coke pushing production.
Secondly, because the speed control signal IN the prior art is sent depending on the power-on and power-off switching condition of the advancing contactor KM1, the speed control signal IN is transmitted to the controller of the dust removal fan 200 only when the pushing ram of the coke pusher advances to execute the coke pushing operation, which may cause the actual high-speed operation time of the dust removal fan to be difficult to match with the coke discharging (pushing) process, which may affect the actual dust removal effect of the dust removal fan. The reason is as follows: the dust removal fan needs a long speed-up time to switch from a low-speed state (such as 20Hz, 387r/min) to a high-speed working state (such as 42Hz, 800r/min), and instantaneous and large-scale speed switching is difficult to realize. In one example, the dust removal fan needs 66 seconds to be lifted from the low-speed state of 20Hz to the high-speed working state of 42Hz, the long slope acceleration time exists, namely, 66 seconds is needed for the speed to be increased from 387r/min to 800r/min, and the whole coke pushing process of the coke pusher from the starting to the advancing to the stopping (coke pushing ending) is less than 66 seconds (only 60 seconds is needed in one example). Under the condition, when the coke pusher advances at the coke pushing rod, the dust removal fan slowly starts accelerating after sending the speed regulating signal IN, and the dust removal fan does not wait until the dust removal fan accelerates to the highest speed, so that the acceleration process is finished because the coke pushing rod already advances to the right position and stops, and the dust removal fan starts decelerating. That is, the dust removal fan in the whole coke pushing process cannot reach the optimal rotating speed, the high-speed operation time of the dust removal fan cannot be matched with the coke discharging process, the dust removal fan cannot be synchronous with the coke pushing process, and the dust removal effect is weak.
In view of the above, the inventor proposes the following embodiments to improve the following, and the principle provided by the embodiments of the present application can accelerate the dust removal fan to the optimal operating state in advance before the pushing action is performed by the pushing rod of the coke pusher, so that the dust removal fan can have the operating condition of sufficient dust removal when the coke pushing is started, and the error control of the dust removal fan in the non-production state can be avoided, thereby reducing the unnecessary energy consumption. The principle provided by the embodiment of the application can be realized through logic programming control, for example, the automatic speed regulation of the dust removal fan can be realized by adopting a logic programmable controller (PLC), and the principle can also be realized in a hardware combination wiring circuit mode of a relay. In the embodiment of the application, the signal transmission mode related to the dust removal fan can be applied to both coke pushing and dust removal scenes and coal charging and dust removal scenes, but the speed regulation control modes are different due to the fact that specific equipment and processing flows related to the coke pushing and dust removal scenes and the coal charging and dust removal scenes are different. In the embodiment of the application, the dust removal fan under the coke pushing and dust removing scene is subjected to speed regulation control based on the coke pushing flow realized by the coke pusher.
Referring to fig. 2, fig. 2 is a flowchart illustrating a working process of a coke pusher according to an embodiment of the present disclosure.
As shown in FIG. 2, the coke pusher can be operated in order according to the tapping plan and the positions of the coking chambers of different furnace numbers.
In the workflow shown in fig. 2, steps 1 to 10 are included.
Step 1: the coke pusher moves to the next furnace number before operation.
Step 2: the coke pusher stops walking.
For example, when furnace No. 2 is determined as the current planned furnace number, the coke pusher can move to the next furnace number (furnace No. 2) according to the position of the carbonization chamber corresponding to the planned furnace number at the moment. When the coke pusher moves to the next furnace number (furnace No. 2) and stops moving, the next furnace number (furnace No. 2) is taken as the planned furnace number. The pusher car may be prepared to perform a pushing operation on the planned oven number (oven No. 2).
And step 3: the coke pusher opens the furnace door of the planned furnace number.
Based on step 2, the coke pusher can perform door opening operation on furnace number 2 which is used as the planned furnace number at this time. Referring to fig. 3, when the door-withdrawing mechanism of the coke pusher is controlled to act in sequence according to "sequence 1", "sequence 2" and "sequence 3" in fig. 3, the door-withdrawing mechanism may first approach the carbonization chamber with the planned furnace number, then the door-withdrawing mechanism is hooked with the furnace door with the planned furnace number (as "sequence 2" in fig. 3), then the door-withdrawing mechanism with the furnace door is retreated in a direction away from the carbonization chamber until the door-withdrawing mechanism is retreated to a proper position and stopped, and when the door-withdrawing mechanism is retreated to the rear limit of the door-withdrawing mechanism to the point, the coke pusher is considered to have completed the door-opening process for the current planned furnace number.
And 4, step 4: the coke pusher smoothes the last furnace number.
When the door opening operation for the current planned furnace number is completed, the coke pusher can perform the coal leveling process on the last furnace number (the furnace number before the current planned furnace number, namely, the last planned furnace number, for example, furnace number 1), and the coal leveling process takes a long time.
The operation opening on each furnace number can comprise a large furnace door and a small window (which can be regarded as a small furnace door) special for coal leveling, and the small window special for coal leveling is closed under a normal state and is opened only when the coal leveling is needed. The large furnace door is used as a door which needs to be opened before pushing coke and needs to be closed after pushing coke is finished. Therefore, in the flow provided by the embodiment of the present application, the oven doors operated by the coke pusher in steps 3 and 10 are both large oven doors related to the coke pushing process, and it can be understood that the large oven doors have a larger area than the small oven doors (windows dedicated to coal leveling). After the big furnace door of the previous furnace number (furnace No. 1) is closed, after the coke pusher opens the big furnace door of the furnace No. 2, before the coke pusher pushes the furnace No. 2, the coke pusher opens the special coal leveling window of the previous furnace number (furnace No. 1), and the coal leveling operation is carried out through the special coal leveling window of the furnace No. 1, wherein the purpose of coal leveling is to avoid the coal loaded into the coke oven from being accumulated in the furnace. After the coal leveling operation of the No. 1 furnace is finished, the special coal leveling window of the No. 1 furnace is closed, and at the moment, the coke pusher can start to carry out coke pushing operation on the No. 2 furnace.
And 5: and finishing coal leveling by the coke pusher.
Step 6: the coke pushing rod advances to push the coke for the planned furnace number.
When the coal leveling process of the coke pusher for the last furnace number (furnace No. 1) is finished, the coke pushing process of the current planned furnace number (furnace No. 2) can be started. The coke pushing rod of the coke pusher can advance towards the current planned furnace number (furnace No. 2) to push the coke of the current planned furnace number (furnace No. 2) until the coke pushing rod advances to the right position and stops.
And 7: the coke pushing rod advances to the right position and stops.
And 8: the pushing ram retreats.
When the pushing ram advances to the right position and stops, the pushing process of the current planned furnace number (furnace number 2) is considered to be finished, and the pushing ram of the pushing car can start to retreat in the direction away from the carbonization chamber until the pushing ram retreats to the right position and stops.
And step 9: the coke pushing rod retreats to the right position and stops.
Step 10: the coke pusher closes the furnace door for the planned furnace number.
When the coke pushing rod finishes the coke pushing process for the current planned furnace number (furnace number 2), and the coke pushing rod retreats to the right position and stops, the coke pusher can close the furnace door of the current planned furnace number (furnace number 2). Referring to fig. 3, when the door operator of the coke pusher is controlled to act in sequence according to "sequence 3", "sequence 2" and "sequence 1" in fig. 3, based on the door operator that has been removed in the previous door opening process, the door operator can carry the door operator that has been removed to first approach the carbonization chamber of the planned furnace number, then the door operator can reinstall the door of the carbonization chamber of the planned furnace number at the door opening of the carbonization chamber of the furnace number (as "sequence 2" in fig. 3), then the door operator that has installed the door and no longer carries the door operator retreats in the direction away from the carbonization chamber until the door operator retreats to the position to stop (as "sequence 1" in fig. 3), and when the door operator retreats to the rear limit of the door operator to the site, the coke pusher can be considered to have completed the door closing process for the current planned furnace number (furnace No. 2).
After the furnace door with the planned furnace number is closed, the coke pusher can circularly execute the flow from the step 1 to the step 10 according to the production plan and the positions of all the carbonization chambers, and orderly pushes the carbonization chambers with different furnace numbers by an orderly operation path. Illustratively, after closing the oven door of furnace No. 2, the coke pusher can be run to the next furnace No. (furnace No. 3), and based on the principle of steps 1-10, furnace No. 3 is used as the new planned furnace No. (current planned furnace No.).
It should be noted that the examples, numbers and drawings in the above flow are only described as illustrations.
Referring to fig. 4, fig. 4 is a flowchart of a speed control method of a dust removal fan according to an embodiment of the present disclosure. The method can be implemented based on the coke pushing principle shown in fig. 2. The method can be applied to control equipment which can be vehicle-mounted equipment installed on the coke pusher or remote control equipment in communication connection with the coke pusher. The control device can be connected with a controller of the dust removal fan.
As shown in fig. 4, the method includes: steps S41-S44. In the method of the present embodiment, all the steps and the oven doors mentioned in the embodiments refer to the large oven doors related to coke pushing, except that the coal leveling operation is performed through the special coal leveling window (small oven door).
S41: and judging whether the coke pusher opens the furnace door of the planned furnace number in the production state.
S42: when the coke pusher is determined to open the furnace door of the planned furnace number in the production state, determining that the current moment meets the speed-up condition, and outputting a speed-up signal to the controller of the dust removal fan, so that the controller of the dust removal fan controls the speed-up of the dust removal fan according to the speed-up signal.
The dust removal fan can be a coke discharging dust removal fan.
In an application scene, when the controller of the dust removal fan receives the speed-up signal, a speed-up instruction is sent to the frequency converter of the dust removal fan, so that the operating frequency of the dust removal fan is increased, and the rotating speed of the dust removal fan is increased. After the control device sends the speed-up signal to the controller of the dust removal fan, the signal transmission process of the speed-up signal on the dust removal fan side can refer to the content related to the dust removal fan in fig. 1, but is not limited to the structure shown in fig. 1.
S43: and controlling the coke pusher to carry out coal leveling operation on the last furnace number, wherein the acceleration time required for accelerating the dust removal fan to the set target speed is less than the coal leveling operation time.
The set target speed may be an optimal operating speed of the dust removal fan required for the planned furnace number, for example, the target speed may be a maximum rotation speed of the dust removal fan in order to ensure that the dust removal fan can provide sufficient dust removal effect for each furnace.
In the embodiment of the application, the acceleration time required when the dust removal fan is accelerated from the low-speed state or the wind-cut state to the maximum rotating speed (high-speed state) can be less than the coal leveling operation time of the coke pusher.
In one example, the dust removal fan takes 66 seconds to ramp up from a low speed condition to a target speed for a high speed condition, and the flat coal operation time may be 2 minutes. The total time required for the dedusting fan to increase from zero speed to the target speed in the high speed state can be shorter than the coal leveling operation time.
S44: and when the coal leveling operation process is finished, controlling a coke pushing rod of the coke pusher to advance so as to carry out coke pushing operation on the planned furnace number.
In the methods of S41-S44, for ease of understanding, the method is described by taking the currently planned furnace number 2 as an example, and taking the example that the speed-up process of the dust removal fan is switched from the low speed state of 20Hz, 387r/min to the high speed state of 42Hz, 800 r/min.
Prior to S41, the status of the cart may be continuously monitored to determine if the cart is in production. For example, whether the coke pusher is in the production state can be determined according to the gear shifting condition of the coke pusher, the operation condition of an oil pump, the position of the coke pusher and the like. If the coke pusher is determined not to be in the production state, the speed-up signal does not need to be output to the controller of the dust removal fan, and unnecessary consumption of the dust removal fan under the non-production condition can be avoided.
In the embodiment of the application, when the coke pusher is determined to be in the production state and the furnace door of the planned furnace number is opened in the production state, the acceleration condition of the operation of the dust removal fan is considered to be met, that is, the acceleration condition is determined to be met at the current moment, so that the dust removal fan can be controlled to start acceleration before the coke pushing rod of the coke pusher is controlled to carry out coke pushing, that is, before S44.
Because the acceleration time required for accelerating the speed of the dust removal fan to the set target speed is shorter than the coal leveling operation time, when the speed of the dust removal fan is accelerated, the coal leveling treatment process is not finished, but the dust removal fan has a sufficient dust removal condition, so that the speed of the dust removal fan is accelerated in advance.
When the flat coal treatment process of the last furnace number (furnace No. 1) is finished and the coke pusher pushes the coke of the current planned furnace number (furnace No. 2), the dust removal fan finishes the speed increase in advance, so that the dust removal fan can provide sufficient dust removal capacity for the current planned furnace number (furnace No. 2) in the advancing process of the coke pusher.
In the method of S41-S44, the timing of sending the speed-up signal is not dependent on the forward movement of the coke pushing ram, because before the coke pushing ram of the coke pusher is controlled to advance, the timing when the oven door of the coke pusher is determined to be open with the planned oven number in the production state is used as the speed-up trigger time, the speed-up signal is output to the controller of the dust removal fan, and the acceleration time of the dust removal fan is less than the flat coal operation time, so that the dust removal fan has enough time to raise the rotating speed to the target speed before the coke pusher actually performs the coke pushing action. Therefore, when the coke pushing rod performs coke pushing action, the dust removal fan is already in a high-speed running state, and the problem that the high-speed running time of the dust removal fan is difficult to match with the coke discharging process can be solved.
Even if the slope acceleration time of the frequency converter of the dust removal fan is longer than the coke pushing time of the coke pushing rod from the beginning to the stopping of the advancing, the method can ensure that the dust removal fan is lifted to the target speed before the coke pushing rod advances because the acceleration time of the dust removal fan is shorter than the coal leveling operation time, so that the dust removal fan can fully remove dust for the coke discharging process of the planned furnace number at the optimal operation speed in time.
Optionally, in order to avoid unnecessary resource consumption after the coke pushing process is ended, as shown in fig. 5, after S44, the method may further include: steps S45-S46.
S45: and detecting whether the coke pushing rod advances to the right position and stops.
The mode of detecting the advancing to-position stop is various, and whether the pushing ram advances to-position and stops can be judged through the rotation condition of the motor corresponding to the pushing ram and the advancing contactor corresponding to the pushing ram. A microswitch triggering structure for detecting whether the coke pushing rod advances to the right position and stops can be arranged outside the carbonization chamber, the coke pushing rod or the coke pusher.
S46: and when the situation that the coke pushing rod moves forward to the right position and stops is detected, outputting a speed reduction signal to a controller of the dust removal fan so that the controller of the dust removal fan controls the dust removal fan to reduce the rotating speed according to the speed reduction signal.
When the coke pushing rod of the coke pusher is detected to advance to the right position and stop, the coke pushing process of the current planned furnace number (furnace number 2) is considered to be finished.
The output of the speed reduction signal to the controller of the dust removal fan may be regarded as canceling the maintaining of the target speed, or may be regarded as controlling the dust removal fan to reduce the operating frequency and the rotating speed from the target speed, so that the dust removal fan can be restored to the low-speed state before the speed is increased (for example, from 42Hz, 800r/min to 20Hz, 387r/min) according to the speed reduction signal.
With respect to the signal transmission process of the speed reduction signal at the side of the dust removing fan after the speed reduction signal is output to the controller of the dust removing fan, reference may be made to the contents related to the dust removing fan in fig. 1, but the structure shown in fig. 1 is not limited.
Through the implementation mode of S45-S46, when the dust removal fan which is adjusted to the target speed before the coke pushing rod advances is detected to stop advancing in place, the dust removal fan is controlled to start to reduce the speed, and when the coke pushing car pushes the coke to the planned oven number, the dust removal fan can be controlled to reduce the speed in time, so that the dust removal fan can perform full dust removal at the optimal target speed in the whole coke pushing process of the planned oven number, and resource waste caused by unnecessary high-speed operation of the dust removal fan after the coke pushing is finished can be avoided.
Optionally, as shown in fig. 6, based on the step S46, after detecting that the pushing ram is stopped moving to the right position and outputting a speed reduction signal to the controller of the dust removal fan, the method may further include: steps S47-S48.
S47: and controlling the coke pushing rod to retreat, and detecting whether the coke pushing rod retreats in place and stops.
The mode of detecting the retreating in-place stop is various, whether the coke pushing rod retreats in-place to stop can be judged according to the rotation condition of a motor of the coke pushing rod or the signal change of a retreating contactor corresponding to the coke pushing rod, and a micro switch triggering structure for detecting whether the coke pushing rod retreats in-place to stop can be arranged outside the coke pushing rod or the coke pusher.
S48: and when detecting that the coke pushing rod retreats to the right position and stops, controlling the coke pusher to close the furnace door with the planned furnace number.
For example, when the coke pushing rod is detected to retreat to the right and stop, the door fetching machine of the coke pusher can be controlled to close the furnace door of the current planned furnace number (furnace number 2) according to the door closing principle shown in fig. 3.
Through the implementation mode of S47-S48, the dust removal fan can start to reduce the speed based on the speed reduction signal before the furnace door of the planned furnace number is closed, and after the situation that the coke pushing rod retreats to the right position and stops is detected, the coke pusher is controlled to close the furnace door of the planned furnace number, so that the furnace number processed by the coke pusher can be switched quickly, and the coke pushing process of the next furnace number can be started quickly.
Alternatively, as shown in fig. 7, after controlling the coke pusher to close the oven door of the planned oven number based on S48, the method may further include: steps S49-S50.
S49: and controlling the coke pusher to move to the carbonization chamber corresponding to the next furnace number.
For example, when the coke pusher is controlled to move to the current planned furnace number (furnace number 2), the coke pusher can be orderly controlled to move to the carbonization chamber corresponding to the next furnace number (furnace number 3) according to the furnace discharge plan and the production plan. That is, a new planned furnace number may be determined, and the coke pusher may be controlled to move toward the coking chamber corresponding to the new planned furnace number based on the position corresponding to the new planned furnace number.
S50: when it is detected that the coke pusher has moved to the carbonization chamber corresponding to the next furnace number and stopped moving, the next furnace number is set as a new planned furnace number, and the steps in the foregoing method are repeatedly executed (S41-S49).
And after controlling the coke pusher to move to the carbonization chamber corresponding to the next furnace number each time, detecting whether the coke pusher moves to the carbonization chamber corresponding to the next furnace number and stops moving, and executing S50 when detecting that the coke pusher moves to the carbonization chamber corresponding to the next furnace number and stops moving.
Illustratively, upon detecting that the cart is moved to oven No. 3 after oven No. 2 and stopped before the carbonization chamber corresponding to oven No. 3, oven No. 3 may be taken as the planned oven number at that time, and then the method of S41-S50 may be repeatedly performed based on the new planned oven number (oven No. 3) in accordance with the principles of the foregoing method to process the subsequent oven No. 4 or more.
Through the implementation mode of the S49-S50, the dust removal fan is controlled to switch between high and low rotating speeds according to an ordered production plan in a multi-furnace production scene of sequential production, the high-speed operation time of the dust removal fan can be guaranteed to be enough to meet the coke discharging process of each furnace number, and sufficient dust removal effects are brought to each furnace number in different time periods.
As an embodiment, the implementation process of S41 may include: substeps S411-S412.
S411: and when the coke pusher is determined to be in the production state, detecting whether a door-taking machine of the coke pusher completes the door-opening operation on the planned furnace number currently.
As an implementation manner of S411, the detecting whether the door operator of the coke pusher completes the door opening operation for the planned furnace number currently includes: S4111-S4113.
S4111: detecting whether the door of the door taking machine is currently provided with a furnace door or not and detecting whether the door taking machine is in a rear limit in-place state or not.
S4112: when the door is determined to be currently provided with the furnace door and the door taking machine is in the rear limit in-place state, the rear limit in-place count value currently corresponding to the door taking machine is obtained.
S4113: and when the rear limit in-place count value currently corresponding to the door operator is a target value, determining that the door operator has currently finished door opening operation on the planned furnace number.
For details of the rear limit to reach count value corresponding to the door pickup device, refer to the following description.
Through the implementation mode of the S4111-S4113, misoperation on the dust removal fan when the door taking machine closes the door to the planned furnace number can be avoided, the dust removal fan can be prevented from being accelerated after the furnace door of the planned furnace number is closed, unnecessary consumption of the dust removal fan can be avoided, and energy can be saved.
S412: and when detecting that the door opening operation of the door taking machine for the planned furnace number is finished in the production state, determining that the coke pusher opens the furnace door of the planned furnace number in the production state.
Through the implementation of the above-mentioned S411-S412, an embodiment is provided in which the timing of sending the speed-up signal can be determined, and the timing of sending the speed-up signal is before the pushing ram advances to implement pushing.
In an application scenario, before obtaining a rear limit in-place count value currently corresponding to the door operator, the method may further include: and (5) updating the rear limit in-place count value of the door operator. The update process of the value may comprise sub-steps S501-S503. The rear limit in-place count value of the door operator can be simply called as a rear limit in-place count value or a count value. Reference is made to FIG. 8 for the relationship between S501-S503 and the coke pushing sequence.
S501: and if the situation that the coke pushing rod stops moving in place is detected, clearing the rear limit in-place count value of the door taking machine.
Based on the coke pushing principle corresponding to fig. 2 and the contents related to the coke pushing rod and the door operator in the method, after the door operator performs the door operator operation on the oven door with one oven number, if the coke pushing rod is detected to be stopped in the forward position, that is, after the coke pushing operation is completed on the oven number of the door operator, the rear limit in-position count value of the door operator can be cleared, for example, the rear limit in-position count value of the door operator at the moment can be set to 0, and the door operator waits for the recounting.
S502: and under the condition that the rear limit in-place count value of the door taking machine is zero, if the situation that the coke pushing rod retreats to the place and stops and the door taking machine is detected to be in the rear limit in-place state for the first time after the coke pushing rod retreats to the place and stops is detected, setting the rear limit in-place count value of the door taking machine to be a first preset value.
In the count value updating process based on S501, since the rear limit in-place count value of the door pickup machine is set to 0 after the coke pushing operation of the current furnace number is completed, when it is detected that the coke pushing rod retreats to the right and stops, the next furnace number is not actually reached. After the situation that the coke pushing rod retreats in place and stops is detected, based on the coke pushing process shown in the figure 2 and the steps of the speed regulation control method, the door of the furnace door with the current furnace number is closed through the door taking machine after the situation that the coke pushing rod retreats in place and stops is detected.
In the door closing implementation process, the door taking machine of the coke pusher can reach the rear limit to the point of the door taking machine, namely, the coke pusher is in the rear limit in-place state. The rear limit in-place count value is set to 0, and when the door operator is detected to be in the rear limit in-place state for the first time after the coke pushing rod is detected to retreat to the place and stop, the rear limit in-place count value of the door operator is updated, the rear limit in-place count value of the door operator is set to a first preset value, and for example, the rear limit in-place count value of the door operator can be set to 1 in a mode of starting to count up from 0.
S503: and under the condition that the rear limit in-place count value of the door picking machine is a first preset value, if the door picking machine is detected to be in a rear limit in-place state again, setting the rear limit in-place count value of the door picking machine as a target value.
In the count value updating process based on S502, since the rear limit in-place count value of the door operator is set to the first preset value (for example, set to 1) after the door opening operation of the oven door of one oven number is completed, based on the coke pushing process of fig. 2 and the foregoing method, the door operator can know the door opening/closing operation with respect to different oven numbers, the coke pusher moves, and the door operator can know that the door operator is in the rear limit in-place state again after the door opening operation (door taking operation) is performed on the oven door of one oven number, and when the door operator is detected to be in the rear limit in-place state again, the door operator actually triggers the rear limit in-place again due to the door opening operation (door taking operation) performed on the new planned oven number, that is, the door operator is in the rear limit in-place state again after S501. Therefore, when the rear limit to position count value is set to 1 and it is detected again that the door pickup is in the rear limit to position state after S501, the rear limit to position count value of the door pickup is updated, and the rear limit to position count value of the door pickup is set to the target value. For example, the rear limit to position count value of the gate extractor may be set to 2 by starting the count up from 1.
Wherein, when the rear limit in-place count value is zero, the last furnace number is the coke pushing operation. When the rear limit in-place count value is a first preset value, the furnace door of the last furnace number is closed by the coke pusher. When the rear limit reach count value is the target value, the coke pusher is moved from the last furnace number to the planned furnace number, and the furnace door of the planned furnace number is opened by the coke pusher.
It is understood that the above-mentioned S501-S503 implement a loop counting process, and the loop counting can be implemented by an up-counting principle or a down-counting principle.
Through the implementation mode of S501-S503, the implementation mode that the rear limit in-place count value of the door extractor can be updated is provided, based on the implementation mode, the high-speed operation time of the dust removal fan is favorably matched with the coke discharging process of the actual planned furnace number, and energy waste caused by acceleration of the dust removal fan too early or too late can be avoided as far as possible. The numerical value of the rear limit in-place count value of the door taking machine is updated, and the speed increasing signal is sent to the dust removal fan according to the coke pushing car state when the rear limit in-place count value of the door taking machine is a target value, so that the door opening operation and the door closing operation can be effectively distinguished, the dust removal fan is prevented from sending wrong speed increasing signals during the door closing operation, and the energy consumption can be reduced.
Optionally, the S41 may further include: detecting whether an oil pump motor of the coke pusher runs or not, and detecting whether the coke pusher stops moving or not.
When the operation of an oil pump motor of the coke pusher is determined, the coke pusher stops moving, the door taking machine is provided with a furnace door and is in a rear limit in-place state, and the rear limit in-place count value currently corresponding to the door taking machine is a target value, the coke pusher is determined to open the furnace door with the planned furnace number in a production state.
In one example, a Programmable Logic Controller (PLC) may be employed to acquire or receive: the method comprises the steps of determining whether the coke pusher opens the furnace door with the planned furnace number in the production state by combining an oil pump motor signal of the coke pusher, a walking movement signal of the coke pusher, a furnace door hooking signal of a door fetching machine and a rear limit in-place detection signal. The specific signal acquisition mode should not be construed as a limitation to the present application as long as the timing of the dust removal fan can be determined based on the principle provided by the embodiment of the present application.
Through the implementation mode, the combination of various detection conditions is combined to judge whether the coke pusher just opens the furnace door of the planned furnace number in the production state, so that unnecessary speed-up signals can be prevented from being sent to the controller of the dust removal fan in the non-production state, and the energy consumption can be reduced.
In summary, by the above method, the timing for sending the speed-up signal to the dust-removing fan is advanced from step 6 to step 3 in fig. 2, so that the dust-removing fan can be fully ensured to provide good dust-removing capability in the coke pushing process of the coke pusher, and a good dust-removing effect is achieved. And because the whole method combines the production state judgment of the coke pusher, the state of the door operator and the state of the coke pushing rod, the combination of various conditions is integrated to judge whether the coke pusher opens the furnace door with the planned furnace number in the production state, and when the coke pusher is determined to actually open the furnace door with the planned furnace number in the production state, the speed-up signal is sent, thereby avoiding sending unnecessary speed-up signals to the controller of the dust removal fan and avoiding mistakenly speeding up the dust removal fan under the non-production condition or after the door closing action.
Based on the same inventive concept, as shown in fig. 9, the embodiment of the present application further provides a control device 400. The control apparatus 400 includes: memory 401, processor 402, and communications component 403. The control device 400 may be used to implement the methods described previously.
The communication component 403 includes a communication bus for implementing direct or indirect connections between the various components in the control device 400.
The memory 401 is a storage medium, and may be a high-speed RAM memory or a non-volatile memory (non-volatile memory).
The Processor 402 has an arithmetic Processing capability, and may be, but is not limited to, a general-purpose Processor such as a Central Processing Unit (CPU) or a Network Processor (NP); but may also be a dedicated processor or a processor built from other programmable logic devices. Processor 402 may implement the methods, steps, and logic blocks provided by embodiments of the present application.
The memory 401 stores thereon a computer program executable by the processor 402, and the processor 402 is configured to execute the computer program stored in the memory 401, so as to implement some or all of the steps of the method provided by the foregoing embodiments.
It should be noted that the structure shown in fig. 9 is only an illustration, and there may be more components in a specific application, or there may be other configurations different from that shown in fig. 9.
Based on the same inventive concept, the embodiment of the application also provides a coke pusher, and the coke pusher is provided with the control equipment.
For further details of the coke pusher, reference may be made to the description of the foregoing embodiments, which are not repeated herein.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus or method may be implemented in other ways. The above-described embodiments are merely illustrative, and for example, a module may be divided into only one logical functional division, and an actual implementation may have another division, and for example, a plurality of units or components may be combined or integrated into another system. In addition, the connections discussed above may be indirect couplings or communication connections between devices or units through some communication interfaces, and may be electrical, mechanical or other forms.
In addition, units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
Furthermore, the functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
It should be noted that the functions, if implemented in the form of software functional modules and sold or used as independent products, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application, or portions thereof, which substantially or substantially contribute to the prior art, may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device to perform all or part of the steps of the methods of the embodiments of the present application.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above embodiments are merely examples of the present application and are not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A speed regulation control method of a dust removal fan is characterized by comprising the following steps:
judging whether the coke pusher opens the furnace door of the planned furnace number in the production state;
when the coke pusher is determined to open the furnace door of the planned furnace number in the production state, determining that the current moment meets the speed-up condition, and outputting a speed-up signal to a controller of a dust removal fan so that the controller of the dust removal fan controls the dust removal fan to increase the rotating speed according to the speed-up signal;
controlling the coke pusher to carry out coal leveling operation on the last furnace number, wherein the acceleration time required by the dust removal fan for accelerating to the set target speed is less than the coal leveling operation time;
and when the coal leveling operation process is finished, controlling a coke pushing rod of the coke pusher to advance so as to carry out coke pushing operation on the planned furnace number.
2. The method of claim 1, further comprising:
detecting whether the coke pushing rod advances to the right position and stops;
and when the situation that the coke pushing rod is detected to advance to the right position and stop is detected, outputting a speed reduction signal to a controller of the dust removal fan, so that the controller of the dust removal fan controls the dust removal fan to reduce the rotating speed according to the speed reduction signal.
3. The method of claim 2, wherein upon detecting that the pushing ram has stopped advancing to the position and outputting a speed reduction signal to a controller of the dust exhaust fan, the method further comprises:
controlling the pushing ram to retreat, and detecting whether the pushing ram retreats in place and stops;
and when the situation that the coke pushing rod retreats to the right position and stops is detected, controlling the coke pusher to close the furnace door of the planned furnace number.
4. The method of claim 3, wherein after controlling the coke pusher to close the oven door for the planned oven number, the method further comprises:
controlling the coke pusher to move to a carbonization chamber corresponding to the next furnace number;
and when the coke pusher is detected to move to the carbonization chamber corresponding to the next furnace number and stops moving, taking the next furnace number as a new planned furnace number, and repeatedly executing the step of judging whether the coke pusher opens the furnace door of the planned furnace number to control the coke pusher to move to the carbonization chamber corresponding to the next furnace number in the production state.
5. The method of any one of claims 1-4, wherein said determining whether the coke pusher will open an oven door of a planned oven number in a production state comprises:
when the coke pusher is determined to be in a production state, detecting whether a door-taking machine of the coke pusher completes door-opening operation on the planned furnace number currently;
and when detecting that the door opening operation of the door taking machine for the planned furnace number is finished in the production state, determining that the coke pusher opens the furnace door of the planned furnace number in the production state.
6. The method of claim 5, wherein the detecting whether a door operator of the coke pusher is currently completing a door opening operation for the planned oven number comprises:
detecting whether a furnace door is currently arranged on the door taking machine or not and detecting whether the door taking machine is in a rear limit in-place state or not;
when the fact that the door of the door taking machine is currently arranged and the door taking machine is in a rear limit in-place state is determined, a rear limit in-place count value currently corresponding to the door taking machine is obtained;
and when the rear limit in-place count value currently corresponding to the door-taking machine is a target value, determining that the door-taking machine has currently completed door-opening operation on the planned furnace number.
7. The method of claim 6, wherein prior to obtaining a currently corresponding back limit to bit count value of the door picker, the method further comprises:
if the fact that the coke pushing rod stops moving in place is detected, clearing a rear limit in-place count value of the door extractor;
under the condition that the rear limit in-place count value of the door extractor is zero, if the situation that the coke pushing rod retreats to the place and stops and the door extractor is in the rear limit in-place state after the situation that the coke pushing rod retreats to the place and stops is detected for the first time, setting the rear limit in-place count value of the door extractor as a first preset value;
under the condition that the rear limit in-place count value of the door picking machine is the first preset value, if the door picking machine is detected to be in a rear limit in-place state again, setting the rear limit in-place count value of the door picking machine as the target value;
when the rear limit in-place count value is zero, the last furnace number is represented to finish the coke pushing operation, when the rear limit in-place count value is the first preset value, the furnace door of the last furnace number is represented to be closed by the coke pusher, and when the rear limit in-place count value is the target value, the coke pusher is represented to be moved from the last furnace number to the planned furnace number, and the furnace door of the planned furnace number is represented to be opened by the coke pusher.
8. The method of claim 6, further comprising:
detecting whether an oil pump motor of the coke pusher runs or not, and detecting whether the coke pusher stops moving or not;
and when the operation of an oil pump motor of the coke pusher is determined, the coke pusher stops moving, a furnace door is arranged on the door-taking machine, the door-taking machine is in a rear limit in-place state, and when the rear limit in-place count value currently corresponding to the door-taking machine is the target value, the coke pusher is determined to open the furnace door with the planned furnace number in the production state.
9. A control apparatus, characterized by comprising:
a memory;
a processor;
the memory has stored thereon a computer program which, when executed by the processor, performs the method of any of claims 1-8.
10. A coke pusher characterized in that the control apparatus of claim 9 is provided thereon.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113355111A (en) * | 2021-07-06 | 2021-09-07 | 广东韶钢松山股份有限公司 | Door taking mechanism |
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