CN103952528A - Automatic steel charging locating system and method for heating furnace - Google Patents
Automatic steel charging locating system and method for heating furnace Download PDFInfo
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- CN103952528A CN103952528A CN201410155432.XA CN201410155432A CN103952528A CN 103952528 A CN103952528 A CN 103952528A CN 201410155432 A CN201410155432 A CN 201410155432A CN 103952528 A CN103952528 A CN 103952528A
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Abstract
The invention discloses an automatic steel charging locating system and method for a heating furnace. The automatic steel charging locating system comprises an external furnace transmission device, an internal furnace transmission device, a drive device, a control device and a detection device, wherein the external furnace transmission device is arranged outside the heating furnace and near a fire door; the internal furnace transmission device is arranged inside the heating furnace and near the fire door; the drive device is arranged outside the heating furnace, and respectively connected with the internal furnace transmission device and the external furnace transmission device; the control device is arranged outside the heating furnace and connected with the drive device; the detection device comprises a first metal detector and a second metal detector; and the first metal detector and the second metal detector are arranged on the external furnace transmission device at an interval. The invention also discloses an automatic steel charging locating method for the heating furnace. By adopting the automatic steel charging locating system and method for the heating furnace provided by the invention, the accuracy and the reliability of the heating furnace for automatic steel charging can be improved.
Description
Technical field
The present invention relates to technical field of steel rolling, relate in particular to a kind of process furnace automatic mounting steel station-keeping system and localization method.
Background technology
Process furnace is the tap of steel rolling production-line, can can process furnace guarantee safety, operation normally, realize comprehensive automated job, heats and qualified steel billet, to whole rolling line can be safely, continue, the producing of direct motion, have vital decisive action.
In order to improve the automatization level of process furnace, prior art is generally by stokehold cold metal detector be fixed on the location that in process furnace, the encoder on second hanging arm roll motor is realized steel billet.When steel billet afterbody is by before process furnace during cold metal detector, roller-way, by reducing at a high speed moderate speed, is now counted by encoder, extrapolates steel billet and arrives while specifying heating location and stop the operation of roller-way, thereby realize the automatic mounting steel of process furnace.
The automatic mounting steel method of the process furnace of prior art, due to roller table speed Incomplete matching, and the velocity variations of acceleration and deceleration process do not mate, whole control process is not under the jurisdiction of same programmable logic controller (PLC) and the communication time delay that brings, and causes steel billet location inaccurate.
Meanwhile, the automatic mounting steel method of the process furnace of prior art, also can be because steel billet bending be skidded, the stopping in advance of process furnace front roller-way; The fixing not firm and transmission amount that causes of encoder and motor is actual is not inconsistent; The difference slightly of the inertia friction power that steel billet weight characteristic is inconsistent caused; Stokehold cold metal detector cannot judge from the hypertelorism of furnace wall inner side whether steel billet enters stove completely; The wear damage of encoder and cause equipotential error etc. former thereby cause steel billet location inaccurate.In addition, when steel billet has been located, if speed is excessive, deceleration distance is non-constant owing to skidding.
Because envrionment temperature is high, roller-way vibration is large and wearing and tearing are large, encoder very easily damages, and replacing is more time-consuming, when not by spare part, can affect normal production.The error producing in order to reduce the coast of final position fixing process, often needs the very little of to play braking effect of tune the deceleration time of converter plant, causes braking resistor to damage too fast.
When steel billet is located inaccurate situation generation, for example, when steel billet does not enter in process furnace completely or has sub-fraction not enter into inside furnace wall completely, the auto-action of pusher or walking beam, can cause the damage of the furnace wall of equipment or process furnace fire door, and cause the crooked and generation of the accident such as cannot come out of the stove of steel billet.In addition, also due to the installation question of cushioning fender in heating-furnace and its limit switch, sometimes after steel billet collision buffering baffle plate still feedback clash into signal, thereby make ceaselessly collision buffering baffle plate and roller-way does not stop, the corresponding damage that also easily causes equipment of steel billet.
Therefore the accuracy and the reliability that, how to improve process furnace automatic mounting steel just become problem demanding prompt solution.
Summary of the invention
The invention provides a kind of process furnace automatic mounting steel station-keeping system, it comprises: transmitting device, drive unit, control device and proofing unit in the outer transmitting device of stove, stove; It is outer near fire door place that the outer transmitting device of described stove is positioned at process furnace, for the stove of steel billet, transmits outward; In described stove, transmitting device is positioned at process furnace near fire door place, in the stove for steel billet, transmits; Described drive unit is positioned at outside process furnace, and is connected respectively with transmitting device in described stove and the outer transmitting device of stove, for starting and stop transmitting device and the outer transmitting device of stove in described stove; Described control device is positioned at outside process furnace, and is connected with described drive unit, for controlling the running speed of the outer transmitting device of transmitting device in described stove and stove; Wherein, described proofing unit comprises the first metal detector and the second metal detector, and this first metal detector and the second metal detector are arranged at intervals on the outer transmitting device of described stove, for detection of the position of steel billet.
Further, described the first metal detector is apart from 6.2 meters～6.8 meters, fire door; Described the second metal detector is apart from 0.3 meter～0.7 meter, fire door.
Further, the outer transmitting device of described stove is one to enter furnace roller road; In described stove, transmitting device is hanging arm roll in a stove; Described drive unit is motor and driving arrangement; Described control device is PLC.
Further, described process furnace automatic mounting steel station-keeping system also comprises an encoder, and this encoder is arranged on the drive unit being connected with transmitting device in described stove, and is connected with described control device, for calculating the miles of relative movement of described steel billet.
The present invention also provides another kind of process furnace automatic mounting steel station-keeping system, and it comprises: transmitting device, drive unit, control device and proofing unit in the outer transmitting device of stove, stove; It is outer near fire door place that the outer transmitting device of described stove is positioned at process furnace, for the stove of steel billet, transmits outward; In described stove, transmitting device is positioned at process furnace near fire door place, in the stove for steel billet, transmits; Described drive unit is positioned at outside process furnace, and is connected respectively with transmitting device in described stove and the outer transmitting device of stove, for starting and stop transmitting device and the outer transmitting device of stove in described stove; Described control device is positioned at outside process furnace, and is connected with described drive unit, for controlling the running speed of the outer transmitting device of transmitting device in described stove and stove; Described proofing unit is comprised of the second metal detector, and described the second metal detector is arranged on the outer transmitting device of described stove, and for detection of the position of steel billet, wherein, described the second metal detector is apart from 0.3 meter～0.7 meter, fire door.
The present invention also provides a kind of process furnace automatic mounting steel localization method, comprises the following steps:
(a) steel billet is placed on the outer transmitting device of stove, drive unit starts transmitting device and the outer transmitting device of described stove in stove, and control device is controlled transmitting device in the outer transmitting device of described stove and stove and all with First Speed, turned round;
(b), when the first metal detector and the second metal detector have signal simultaneously, start position fixing process;
(c), when the afterbody that described steel billet detected when described the first metal detector leaves, control device is controlled transmitting device in the outer transmitting device of described stove and stove and is all reduced to second speed running; And
(d), when the afterbody that described steel billet detected when described the second metal detector leaves, delay to stop after the constant time running of transmitting device in the outer transmitting device of described stove and stove.
Further, in step (a), described First Speed is 1.0 meter per second～1.4 meter per seconds.
Further, in step (c), described second speed is 0.2 meter per second～0.6 meter per second.
Further, in step (c), the described constant time is 3 seconds～4 seconds.
The present invention also provides another kind of process furnace automatic mounting steel localization method, comprises the following steps:
(a) steel billet is placed on the outer transmitting device of stove, drive unit starts transmitting device and the outer transmitting device of described stove in stove, and control device is controlled transmitting device in the outer transmitting device of described stove and stove and all with third speed, turned round;
(b), when the first metal detector and the second metal detector have signal simultaneously, start position fixing process;
(c), when the afterbody that described steel billet detected when described the first metal detector leaves, control device is controlled transmitting device in the outer transmitting device of described stove and stove and is all reduced to the running of four-speed degree;
(d), when the afterbody that described steel billet detected when described the second metal detector leaves, control device controlled encoder starts counting; And
(e) relation of the miles of relative movement corresponding speed calculating according to described encoder, control device is controlled even decelerate of transmitting device while in the outer transmitting device of described stove and stove, until stop.
Further, in step (a), described third speed is 1.3 meter per second～1.7 meter per seconds.
Further, in step (c), described four-speed degree is 0.3 meter per second～0.7 meter per second.
Further, in step (e), the retarded velocity of described even decelerate is less than or equal to 0.3 meter per second
2.
The present invention also provides another kind of process furnace automatic mounting steel localization method, comprises the following steps:
(a) steel billet is placed on the outer transmitting device of stove, drive unit starts transmitting device and the outer transmitting device of described stove in stove, and control device is controlled transmitting device in the outer transmitting device of described stove and stove and all with First Speed, turned round;
(b) when the second metal detector detects the head arrival of described steel billet, delayed for one first constant time, control device is controlled transmitting device in the outer transmitting device of described stove and stove and is all reduced to second speed running; And
(c), when the afterbody that described steel billet detected when described the second metal detector leaves, delay to stop after one second constant time the running of transmitting device in the outer transmitting device of described stove and stove.
Further, in step (a), described First Speed is 1.0 meter per second～1.4 meter per seconds.
Further, in step (b), described the first constant time is 4.5 seconds～5.5 seconds; Described second speed is 0.2 meter per second～0.6 meter per second.
Further, in step (c), described the second constant time is 3 seconds～4 seconds.
Compared with prior art, process furnace automatic mounting steel station-keeping system provided by the invention increased by one from fire door the second metal detector close to more, and by the mode that shortens orientation distance and use suitable retarded velocity to carry out slope deceleration, improve in process furnace automatic mounting steel localization method.By shortening orientation distance, position fixing process can start after steel billet major part enters process furnace, has avoided transmitting device and the outer error that transmitting device speed is not mated and the factor of skidding causes of stove in stove.By reducing the retarded velocity in even moderating process, avoid steel billet to skid and the error that causes of coast.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the process furnace automatic mounting steel station-keeping system that Fig. 1 provides for the embodiment of the present invention one.
The schematic flow sheet of the process furnace automatic mounting steel localization method that Fig. 2 provides for the embodiment of the present invention two.
The structural representation of the process furnace automatic mounting steel station-keeping system that Fig. 3 provides for the embodiment of the present invention three.
The schematic flow sheet of the process furnace automatic mounting steel localization method that Fig. 4 provides for the embodiment of the present invention four.
The structural representation of the process furnace automatic mounting steel station-keeping system that Fig. 5 provides for the embodiment of the present invention five.
The schematic flow sheet of the process furnace automatic mounting steel localization method that Fig. 6 provides for the embodiment of the present invention six.
Main element nomenclature
Process furnace automatic mounting steel station-keeping system 10,20,30
The outer transmitting device 101 of stove
Transmitting device 102 in stove
Drive unit 103
Control device 104
Proofing unit 105
The first metal detector 1051
The second metal detector 1052
Encoder 106
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
As shown in Figure 1, the embodiment of the present invention one provides a kind of process furnace automatic mounting steel station-keeping system 10, and this process furnace automatic mounting steel station-keeping system 10 comprises: transmitting device 102, drive unit 103, control device 104 and proofing unit 105 in the outer transmitting device 101 of stove, stove.
It is outer near fire door place that the outer transmitting device 101 of described stove is positioned at process furnace, for the stove of steel billet, transmits outward, that is, the outer transmitting device 101 of this stove is responsible for by described steel billet conveying the fire door place to process furnace.The type of the outer transmitting device 101 of described stove is not limit, as long as can realize above-mentioned functions.Preferably, in the present embodiment, the outer transmitting device 101 of described stove is one to enter furnace roller road, and this enters furnace roller road and comprises a plurality of rollers that be arranged in parallel, and each roller is all connected with drive unit 103, is controlled the start/stop of each roller by this drive unit 103.The described size that enters furnace roller road can be selected according to actual needs and adjust.
Transmitting device 102 is positioned at process furnace near fire door place in described stove, in the stove for steel billet, transmit, that is, and in this stove transmitting device 102 responsible by described steel billet conveying the position to appointment in process furnace.Similarly, in described stove, the type of transmitting device 102 is not limit, as long as can realize above-mentioned functions.Preferably, in the present embodiment, in described stove, transmitting device 102 is hanging arm roll in a stove, and in this stove, hanging arm roll comprises a plurality of rollers that be arranged in parallel, and each roller is all connected with drive unit 103, is controlled the start/stop of each roller by this drive unit 103.In described stove, the size of hanging arm roll can be selected according to actual needs and adjust.
Described drive unit 103 is positioned at outside process furnace, and is connected respectively with transmitting device 102 in described stove and the outer transmitting device 101 of stove, for starting and stop transmitting device 102 and the outer transmitting device 101 of stove in described stove.Preferably, described drive unit 103 comprises a plurality of motors and driving arrangement thereof, and in the present embodiment, described motor is variable-frequency motor, and described driving arrangement is frequency transformer.
Described control device 104 is positioned at outside process furnace, and is connected with described drive unit 103, for controlling the running speed of the outer transmitting device 101 of transmitting device 102 in described stove and stove.When described drive unit 103 comprises variable-frequency motor and frequency transformer, described control device 104 is directly connected with the frequency transformer in described drive unit 103, for controlling variable-frequency motor.In the present embodiment, described control device 104 is a PLC, and the running speed of the outer transmitting device 101 of transmitting device 102 and stove all can be by this PLC programming Control in described stove, and realizes by controlling the running speed of variable-frequency motor.
Described proofing unit 105 comprises the first metal detector 1051 and the second metal detector 1052, and this first metal detector 1051 and the second metal detector 1052 are arranged at intervals on the outer transmitting device 101 of described stove, for detection of the position of steel billet.In the present embodiment, described the first metal detector 1051 and the second metal detector 1052 are the detector that utilizes the work of laser reflection principle.This first metal detector 1051 and the second metal detector 1052 all can detect entering and leaving of the metals such as steel billet.
Described the first metal detector 1051 is arranged on the place far away apart from fire door, preferably, this first metal detector 1051 is arranged on the position apart from 6.2 meters～6.8 meters, fire door, and in the present embodiment, this first metal detector 1051 is arranged on apart from 6.5 meters of of fire door.
Described the second metal detector 1052 is arranged on the place nearer apart from fire door, preferably, this second metal detector 1052 is arranged on the position apart from 0.3 meter～0.7 meter, fire door, and in the present embodiment, this second metal detector 1052 is arranged on apart from 0.5 meter of of fire door.When this second metal detector 1052 is arranged on apart from 0.3～0.7 meter of of fire door, can further increase the accuracy or the tolerance range that detect and locate.In order to reduce the impact of fire door place high temperature, further extend the work-ing life of described the second metal detector 1052, can install a heat abstractor additional on these the second metal detector 1052 surfaces.
The process furnace automatic mounting steel station-keeping system that the embodiment of the present invention one provides, has cancelled the use of encoder, has increased by the second metal detector, has shortened orientation distance, thereby has improved the accuracy of steel billet location, has also improved security.
Embodiment bis-
As shown in Figure 2, the embodiment of the present invention two provides a kind of process furnace automatic mounting steel localization method, the process furnace automatic mounting steel station-keeping system 10 that this localization method has utilized above-described embodiment one to provide, and this localization method specifically comprises the following steps:
(a) steel billet is placed on the outer transmitting device 101 of described stove, described drive unit 103 starts transmitting device 102 and the outer transmitting device 101 of stove in described stove, and described control device 104 is controlled transmitting device 102 in the outer transmitting device 101 of described stove and stove and all with First Speed, turned round;
(b), when described the first metal detector 1051 and the second metal detector 1052 have signal simultaneously, start position fixing process;
(c), when the afterbody that described steel billet detected when described the first metal detector 1051 leaves, described control device 103 is controlled transmitting device 102 in the outer transmitting device 101 of described stove and stove and is all reduced to second speed running; And
(d), when the afterbody that described steel billet detected when described the second metal detector 1052 leaves, delay to stop after the constant time running of transmitting device 102 in the outer transmitting device 101 of described stove and stove.
In step (a), described First Speed is 1.0 meter per second～1.4 meter per seconds, and preferably, in the present embodiment, described First Speed is 1.2 meter per seconds.That is, the outer transmitting device 101 of described stove is with speed fire door place transmission toward process furnace by described steel billet of 1.2 meter per seconds.
In step (b), when described the first metal detector 1051 and the second metal detector 1052 have signal simultaneously, be that described the second metal detector 1052 detects the arrival of steel billet head, when described the first metal detector 1051 has detected steel billet signal simultaneously, illustrate that these two metal detectors all normally work, so start position fixing process.If before position fixing process starts, only have a metal detector signal to be detected, illustrate that another metal detector breaks down, should stop immediately filling steel process and play a protective role.
In step (c), described second speed is 0.2 meter per second～0.6 meter per second, and preferably, in the present embodiment, described second speed is 0.4 meter per second.That is,, when the afterbody that described steel billet detected when described the first metal detector 1051 leaves, the speed that the outer transmitting device 101 of described stove reduces to 0.4 meter per second continues described steel billet to transmit in the fire door place of process furnace and fire door.
In step (d), the optimum value that the described constant time can test repeatedly according to scene, or calculate divided by velometer with orientation distance.Preferably, the described constant time is 3 seconds～4 seconds.In the present embodiment, the described constant time is 3.5 seconds.
After step (d) completes, whole position fixing process finishes.Wherein, the described 3.5 seconds constant time can immobilize, although because the length of steel billet is slightly different, steel billet orientation distance has shortened, and the error of generation is very little.
Utilize the localization method of the present embodiment two to improve widely the automatic mounting steel locating accuracy of steel billet, reduced positioning error.
Embodiment tri-
As shown in Figure 3, the embodiment of the present invention three provides another kind of process furnace automatic mounting steel station-keeping system 20, the process furnace automatic mounting steel station-keeping system 10 providing with embodiment mono-is identical, this process furnace automatic mounting steel station-keeping system 20 also comprises: transmitting device 102, drive unit 103, control device 104 and proofing unit 105 in the outer transmitting device 101 of stove, stove, and also equal identical with in process furnace automatic mounting steel station-keeping system 10 of the position relationship between above-mentioned each device and annexation.Different from described process furnace automatic mounting steel station-keeping system 10, this process furnace automatic mounting steel station-keeping system 20 also comprises an encoder 106.
This encoder 106 is positioned at outside stove, is arranged on the drive unit 103 being connected with transmitting device 102 in described stove, and is connected with described control device 104, for calculating the miles of relative movement of described steel billet.Preferably, described encoder 106 is fixed on and second variable-frequency motor afterbody that hanging arm roll is connected in stove.
It is larger that the process furnace automatic mounting steel station-keeping system that the embodiment of the present invention three provides is specially adapted to steel billet difference in length, or often need to pack the short blank location of right-justifying that keeps left into, or the situation while needing more reliably accurately locate faster.Separately, increase the use of encoder 106, can suitably improve First Speed and second speed in position fixing process.
Embodiment tetra-
As shown in Figure 3, the embodiment of the present invention four provides a kind of process furnace automatic mounting steel localization method, the process furnace automatic mounting steel station-keeping system 20 that this localization method has utilized above-described embodiment three to provide, and this localization method specifically comprises the following steps:
(a) steel billet is placed on the outer transmitting device 101 of described stove, described drive unit 103 starts transmitting device 102 and the outer transmitting device 101 of stove in described stove, and described control device 104 is controlled transmitting device 102 in the outer transmitting device 101 of described stove and stove and all with third speed, turned round;
(b), when described the first metal detector 1051 and the second metal detector 1052 have signal simultaneously, start position fixing process;
(c), when the afterbody that described steel billet detected when described the first metal detector 1051 leaves, described control device 104 is controlled transmitting device 102 in the outer transmitting device 101 of described stove and stove and is all reduced to the running of four-speed degree;
(d), when the afterbody that described steel billet detected when described the second metal detector 1052 leaves, described control device 104 is controlled described encoder 106 and is started counting; And
(e) relation of the miles of relative movement corresponding speed calculating according to described encoder 106, described control device 104 is controlled even decelerate of 102 while of transmitting device in the outer transmitting device 101 of described stove and stove, until stop.
In step (a), described third speed is 1.3 meter per second～1.7 meter per seconds, and preferably, in the present embodiment, described third speed is 1.5 meter per seconds.That is, the outer transmitting device 101 of described stove is with speed fire door place transmission toward process furnace by described steel billet of 1.5 meter per seconds.
In step (b), the same with embodiment bis-, when only there being a metal detector signal of steel billet to be detected, should stop immediately filling steel process and play a protective role.
In step (c), described four-speed degree is 0.3 meter per second～0.7 meter per second, and preferably, in the present embodiment, described four-speed degree is 0.5 meter per second.That is,, when the afterbody that described steel billet detected when described the first metal detector 1051 leaves, the speed that the outer transmitting device 101 of described stove reduces to 0.5 meter per second continues described steel billet to transmit in the fire door place of process furnace and fire door.
In step (e), the retarded velocity of described even decelerate is less than or equal to-0.3 meter per second 2, be that acceleration retarded velocity when transmitting device 102 reduces to speed and is zero from described four-speed degree in the outer transmitting device 101 of described stove and stove is controlled at-0.3 meter per second below 2, to prevent that steel billet from skidding or coast in this moderating process.The parameters such as the miles of relative movement of the steel billet that the occurrence of the retarded velocity of described even decelerate can calculate according to described encoder 106, corresponding speed, initial velocity are determined and adjust.
Certainly, in step (e), in the outer transmitting device 101 of described stove and stove, transmitting device 102 also can first keep described four-speed degree uniform motion one segment distance (distance of uniform motion can be carried out anti-reckoning according to the distance of even moderating process needs and be drawn), and then start even moderating process, speed is reduced to zero from described four-speed degree.
In the process furnace automatic mounting steel localization method providing at the present embodiment four, in described drive unit 103, can be located at for 2 seconds above or normal value the deceleration time of frequency transformer, moderating process is completely by time variable control, thereby reduced the loss of moderating process to braking resistor.The localization method that the present embodiment four provides, the use of described the first metal detector 1051, the second metal detector 1052 matching coding devices 106, can provide more accurate steel billet location.
Embodiment five
As shown in Figure 5, the embodiment of the present invention five provides another kind of process furnace automatic mounting steel station-keeping system 30, the process furnace automatic mounting steel station-keeping system 10 providing with embodiment mono-is identical, this process furnace automatic mounting steel station-keeping system 30 also comprises: transmitting device 102, drive unit 103, control device 104 and proofing unit 105 in the outer transmitting device 101 of stove, stove, and also equal identical with in process furnace automatic mounting steel station-keeping system 10 of the position relationship between above-mentioned each device and annexation.Different from described process furnace automatic mounting steel station-keeping system 10 is, the proofing unit 105 of this process furnace automatic mounting steel station-keeping system 30 is only comprised of the second metal detector 1052, that is the process furnace automatic mounting steel station-keeping system 30 that, the present embodiment five provides has been cancelled the use of described the first metal detector 1051.
Described the second metal detector 1052 is arranged on the place nearer apart from fire door, preferably, this second metal detector 1052 is arranged on the position apart from 0.3 meter～0.7 meter, fire door, and in the present embodiment, this second metal detector 1052 is arranged on apart from 0.5 meter of of fire door.Similar with embodiment mono-, in the present embodiment, also can install a heat abstractor additional on these the second metal detector 1052 surfaces, to reduce the temperature of this second metal detector 1052, extend its work-ing life.
The process furnace automatic mounting steel station-keeping system 10 providing with respect to embodiment mono-, the process furnace automatic mounting steel station-keeping system 30 that the embodiment of the present invention five provides can reduce costs in the accuracy that guarantees steel billet location, simplified construction.
Embodiment six
As shown in Figure 6, the embodiment of the present invention six provides another kind of process furnace automatic mounting steel localization method, the process furnace automatic mounting steel station-keeping system 30 that this localization method has utilized above-described embodiment five to provide, and this localization method specifically comprises the following steps:
(a) steel billet is placed on the outer transmitting device 101 of described stove, described drive unit 103 starts transmitting device 102 and the outer transmitting device 101 of stove in described stove, and described control device 104 is controlled transmitting device 102 in the outer transmitting device 101 of described stove and stove and all with First Speed, turned round;
(b) when described the second metal detector 1052 detects the head arrival of described steel billet, delay after one first constant time, described control device 104 is controlled transmitting device 102 in the outer transmitting device 101 of described stove and stove and is all reduced to second speed running; And
(c), when the afterbody that described steel billet detected when the second metal detector 1052 leaves, delay after one second constant time, stop the outer transmission of described stove fill 101 and stove in the running of transmitting device 102.
In step (a), described First Speed is 1.0 meter per second～1.4 meter per seconds, and preferably, in the present embodiment, described First Speed is 1.2 meter per seconds.That is, the outer transmitting device 101 of described stove is with speed fire door place transmission toward process furnace by described steel billet of 1.2 meter per seconds.
In step (b), described the first constant time can need to be adjusted according to scene, or calculates the time that needs time delay according to the length of steel billet.Preferably, described the first constant time is 4.5 seconds～5.5 seconds.In the present embodiment, described the first constant time is 5 seconds.
In step (b), described second speed is 0.2 meter per second～0.6 meter per second, and preferably, in the present embodiment, described second speed is 0.4 meter per second.That is, when the head that described steel billet detected when described the second metal detector 1052 arrives, delay after one first constant time, the speed that the outer transmitting device 101 of described stove reduces to 0.4 meter per second continues described steel billet to transmit in the fire door place of process furnace and fire door.
In step (c), the optimum value that described the second constant time can test repeatedly according to scene, or calculate divided by velometer with orientation distance.Preferably, described the second constant time is 3 seconds～4 seconds.In the present embodiment, the described constant time is 3.5 seconds.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (15)
1. a process furnace automatic mounting steel station-keeping system, comprising: transmitting device, drive unit, control device and proofing unit in the outer transmitting device of stove, stove; It is outer near fire door place that the outer transmitting device of described stove is positioned at process furnace, for the stove of steel billet, transmits outward; In described stove, transmitting device is positioned at process furnace near fire door place, in the stove for steel billet, transmits; Described drive unit is positioned at outside process furnace, and is connected respectively with transmitting device in described stove and the outer transmitting device of stove, for starting and stop transmitting device and the outer transmitting device of stove in described stove; Described control device is positioned at outside process furnace, and be connected with described drive unit, for controlling the running speed of the interior transmitting device of described stove and the outer transmitting device of stove, it is characterized in that, described proofing unit comprises the first metal detector and the second metal detector, this first metal detector and the second metal detector are arranged at intervals on the outer transmitting device of described stove, for detection of the position of steel billet.
2. station-keeping system as claimed in claim 1, is characterized in that, described the first metal detector is apart from 6.2 meters～6.8 meters, fire door; Described the second metal detector is apart from 0.3 meter～0.7 meter, fire door.
3. station-keeping system as claimed in claim 1, is characterized in that, the outer transmitting device of described stove is one to enter furnace roller road; In described stove, transmitting device is hanging arm roll in a stove; Described drive unit is motor and driving arrangement; Described control device is PLC.
4. station-keeping system as claimed in claim 1, is characterized in that, further comprises an encoder, and this encoder is arranged on the drive unit being connected with transmitting device in described stove, and is connected with described control device, for calculating the miles of relative movement of described steel billet.
5. a process furnace automatic mounting steel station-keeping system, it comprises: transmitting device, drive unit, control device and proofing unit in the outer transmitting device of stove, stove; It is outer near fire door place that the outer transmitting device of described stove is positioned at process furnace, for the stove of steel billet, transmits outward; In described stove, transmitting device is positioned at process furnace near fire door place, in the stove for steel billet, transmits; Described drive unit is positioned at outside process furnace, and is connected respectively with transmitting device in described stove and the outer transmitting device of stove, for starting and stop transmitting device and the outer transmitting device of stove in described stove; Described control device is positioned at outside process furnace, and is connected with described drive unit, for controlling the running speed of the outer transmitting device of transmitting device in described stove and stove; Described proofing unit is comprised of the second metal detector, and described the second metal detector is arranged on the outer transmitting device of described stove, and the position for detection of steel billet, is characterized in that, described the second metal detector is apart from 0.3 meter～0.7 meter, fire door.
6. a process furnace automatic mounting steel localization method, comprises the following steps:
(a) steel billet is placed on the outer transmitting device of stove, drive unit starts transmitting device and the outer transmitting device of described stove in stove, and control device is controlled transmitting device in the outer transmitting device of described stove and stove and all with First Speed, turned round;
(b), when the first metal detector and the second metal detector have signal simultaneously, start position fixing process;
(c), when the afterbody that described steel billet detected when the first metal detector leaves, control device is controlled transmitting device in the outer transmitting device of described stove and stove and is all reduced to second speed running; And
(d), when the afterbody that described steel billet detected when the second metal detector leaves, delay to stop after the constant time running of transmitting device in the outer transmitting device of described stove and stove.
7. localization method as claimed in claim 6, is characterized in that, described First Speed is 1.0 meter per second～1.4 meter per seconds; Described second speed is 0.2 meter per second～0.6 meter per second.
8. localization method as claimed in claim 6, is characterized in that, the described constant time is 3 seconds～4 seconds.
9. a process furnace automatic mounting steel localization method, comprises the following steps:
(a) steel billet is placed on the outer transmitting device of stove, drive unit starts transmitting device and the outer transmitting device of described stove in stove, and control device is controlled transmitting device in the outer transmitting device of described stove and stove and all with third speed, turned round;
(b), when the first metal detector and the second metal detector have signal simultaneously, start position fixing process;
(c), when the afterbody that described steel billet detected when the first metal detector leaves, control device is controlled transmitting device in the outer transmitting device of described stove and stove and is all reduced to the running of four-speed degree;
(d), when the afterbody that described steel billet detected when the second metal detector leaves, control device controlled encoder starts counting; And
(e) relation of the miles of relative movement corresponding speed calculating according to described encoder, control device is controlled even decelerate of transmitting device while in the outer transmitting device of described stove and stove, until stop.
10. localization method as claimed in claim 9, is characterized in that, described third speed is 1.3 meter per second～1.7 meter per seconds; Described four-speed degree is 0.3 meter per second～0.7 meter per second.
11. localization methods as claimed in claim 9, is characterized in that, the retarded velocity of described even decelerate is less than or equal to 0.3 meter per second
2.
12. 1 kinds of process furnace automatic mounting steel localization methods, comprise the following steps:
(a) steel billet is placed on the outer transmitting device of stove, drive unit starts transmitting device and the outer transmitting device of described stove in stove, and control device is controlled transmitting device in the outer transmitting device of described stove and stove and all with First Speed, turned round;
(b) when the second metal detector detects the head arrival of described steel billet, delayed for one first constant time, control device is controlled transmitting device in the outer transmitting device of described stove and stove and is all reduced to second speed running; And
(c), when the afterbody that described steel billet detected when the second metal detector leaves, delay to stop after one second constant time the running of transmitting device in the outer transmitting device of described stove and stove.
13. localization methods as claimed in claim 12, is characterized in that, described First Speed is 1.0 meter per second～1.4 meter per seconds.
14. localization methods as claimed in claim 12, is characterized in that, described the first constant time is 4.5 seconds～5.5 seconds; Described second speed is 0.2 meter per second～0.6 meter per second.
15. localization methods as claimed in claim 12, is characterized in that, described the second constant time is 3 seconds～4 seconds.
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| CN104181852A (en) * | 2014-08-22 | 2014-12-03 | 重庆钢铁集团电子有限责任公司 | Automatic steel loading control method of heat accumulating type stepping heating furnace |
| CN105695726A (en) * | 2014-11-27 | 2016-06-22 | 宝山钢铁股份有限公司 | Roller way speed closed-loop control method of online continuous induction furnace |
| CN106766934A (en) * | 2016-12-08 | 2017-05-31 | 重庆钢铁集团电子有限责任公司 | The automatic steel loading control system of heating furnace and method |
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| CN104181852B (en) * | 2014-08-22 | 2017-02-15 | 重庆钢铁集团电子有限责任公司 | Automatic steel loading control method of heat accumulating type stepping heating furnace |
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| CN113388729A (en) * | 2021-06-18 | 2021-09-14 | 中天钢铁集团有限公司 | Billet feeding length measuring and positioning device and billet feeding length measuring and positioning method |
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| CN114951812B (en) * | 2022-07-07 | 2024-03-12 | 山东莱钢永锋钢铁有限公司 | Bar flying shear speed acquisition switching system |
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Address after: 100096 Beijing Haidian District Xisanqi building materials East Road 18, 5, 518 room. Patentee after: Polytron Technologies Inc in Beijing Address before: 100096 Beijing Haidian District Xisanqi building materials East Road 18, 5, 518 room. Patentee before: Beijing Bestpower Worthysky Technology Co., Ltd. |