CN211803064U - Rod and wire rod direct rolling production line - Google Patents
Rod and wire rod direct rolling production line Download PDFInfo
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- CN211803064U CN211803064U CN201921913958.4U CN201921913958U CN211803064U CN 211803064 U CN211803064 U CN 211803064U CN 201921913958 U CN201921913958 U CN 201921913958U CN 211803064 U CN211803064 U CN 211803064U
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- 238000005096 rolling process Methods 0.000 title claims abstract description 117
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 43
- 238000009749 continuous casting Methods 0.000 claims abstract description 247
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- 230000001502 supplementing effect Effects 0.000 claims abstract description 6
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- 238000005265 energy consumption Methods 0.000 abstract description 5
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- 229910000831 Steel Inorganic materials 0.000 description 1
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Abstract
The utility model provides a stick wire rod vertical rolling production line belongs to stick wire rod production technical field, including conticaster and rolling mill, still include transfer orbit, intermediate frequency induction furnace and supporting controller. The conveying track is arranged in the middle of the continuous casting machine and the rolling mill and used for sorting, rectifying and transferring the continuous casting billets produced by the continuous casting machine to the rolling mill. The medium frequency induction furnace is positioned between the continuous casting machine and the rolling mill, is connected with the conveying track and is used for quickly supplementing heat to the continuous casting billets transferred by the conveying track. The utility model provides a stick line rolling production line directly, can be quick carry out the concurrent heating to the continuous casting billet that takes place the temperature drop, make the temperature of continuous casting billet satisfy rolling temperature, can improve the rolling efficiency of continuous casting billet, can guarantee the production quality of continuous casting billet simultaneously; in addition, energy consumption can be reduced, and the practicability is high.
Description
Technical Field
The utility model belongs to the technical field of stick wire rod production, more specifically say, relate to a stick wire rod rolls production line directly.
Background
When traditional bar wire rod rolling production, need to carry the continuous casting billet that the conticaster produced to the rolling mill and roll, but receive the influence of distance and carrying speed between conticaster and rolling mill, the continuous casting billet can take place the temperature drop in the transportation process, causes the temperature of continuous casting billet to reach rolling temperature, and then influences the quality of product.
In the prior art, a heating furnace is usually arranged between a continuous casting machine and a rolling mill to heat a continuous casting billet, so that the problem that the continuous casting billet cannot reach the rolling temperature due to temperature drop is avoided, and the continuous casting billet can meet the rolling temperature. However, the mode of arranging the heating furnace in the using process wastes energy, increases the cost and pollutes the environment. Moreover, the heating time of the heating furnace is long, which seriously reduces the production efficiency of the rod and wire. In addition, the heating furnace cannot keep the head and tail temperature of the continuous casting billet within a certain range, and further the rolling quality of the continuous casting billet is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stick wire rod is directly rolled production line aims at solving the big, the low problem of rolling quality poor of production efficiency and continuous casting billet of energy consumption in the current stick wire rod is directly rolled production.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a bar wire rod vertical rolling production line, including conticaster and rolling mill, still include:
the conveying track is used for sorting, rectifying and transferring the continuous casting billet produced by the continuous casting machine to the rolling mill;
the medium-frequency induction furnace is positioned between the continuous casting machine and the rolling mill and is used for quickly supplementing heat to the continuous casting billet transferred by the transfer track; and
a matched controller.
As another embodiment of the present application, the transfer rail includes:
one end of the continuous casting conveying roller way is connected with the continuous casting machine and is used for conveying the multi-strand continuous casting billet coming out of the continuous casting machine;
one end of the knockout roller way is connected with the other end of the continuous casting conveying roller way and is used for sorting and transmitting the multi-flow continuous casting billets transmitted by the continuous casting conveying roller way backwards; and
one end of the rapid conveying roller way is connected with the other end of the ejection roller way, and the other end of the rapid conveying roller way is connected with the intermediate frequency induction furnace and used for rapidly transferring the continuous casting billets;
the continuous casting conveying roller way, the knockout roller way and the rapid transport roller way are respectively electrically connected with the controller.
As another embodiment of the present application, the rapid transport roller table includes:
one end of the first direct-feeding roller way is connected with the ejection roller way and is used for adjusting the multi-flow continuous casting billet conveyed by the ejection roller way into a single flow and conveying the single flow continuous casting billet backwards; and
and one end of the second direct-feeding roller way is connected with the first direct-feeding roller way, and the other end of the second direct-feeding roller way is connected with the medium-frequency induction furnace and is used for receiving the single-flow continuous casting billet conveyed by the first direct-feeding roller way and quickly conveying the single-flow continuous casting billet to the medium-frequency induction furnace.
As another embodiment of the application, a plurality of first temperature sensors for detecting the temperature of the continuous casting billet and positioning the position of the continuous casting billet are arranged on the rapid transport roller way, and the plurality of first temperature sensors are distributed on the first direct-feeding roller way and the second direct-feeding roller way at intervals along the traveling direction of the continuous casting billet;
the plurality of first temperature sensors are respectively electrically connected with the controller.
As another embodiment of this application, the transfer track still includes the transition roll table that is used for adjusting continuous casting billet transmission speed, the transition roll table includes:
the cantilever roller way is positioned between the rapid transport roller way and the intermediate frequency induction furnace and is used for integrating the transmission speed of the continuous casting billet from the rapid transport roller way into the intermediate frequency induction furnace; and
and the front roller way is positioned between the intermediate frequency induction furnace and the rolling mill and is used for integrating the transmission speed of the continuous casting billet entering the rolling mill from the intermediate frequency induction furnace.
As another embodiment of this application, ejection roller entry entrance is equipped with and is used for detecting the pyrometer of the continuous casting billet head temperature of passing out in the conticaster, the pyrometer with controller electric connection.
As another embodiment of the present application, the ejection roller table comprises:
one end of the roller way sliding seat is connected with the multi-strand continuous casting conveying roller way and is used for receiving and sorting the multi-strand continuous casting blanks transmitted by the continuous casting conveying roller way;
the delivery end is in a funnel shape, the end with the large opening is connected with the roller way sliding seat, the end with the small opening is connected with the rapid transport roller way, and the delivery end is used for rectifying the qualified continuous casting blanks sorted by the roller way sliding seat and delivering the qualified continuous casting blanks to the rapid transport roller way; and
the lower line end is positioned on one side of the transmission end, is arranged in parallel with the transmission end along the direction vertical to the conveying direction, and is used for sorting unqualified continuous casting billets by the roller way sliding seat to carry out lower line;
the roller way sliding seat is also used for sliding back and forth between the transfer end and the lower line end along the direction perpendicular to the conveying direction and respectively conveying qualified or unqualified continuous casting billets to the transfer end or the lower line end.
As another embodiment of the application, a plurality of second temperature sensors for detecting the temperature of the continuous casting billet and positioning the continuous casting billet are arranged in the medium-frequency induction furnace, and the plurality of second temperature sensors are arranged at intervals along the advancing direction of the continuous casting billet;
the plurality of second temperature sensors are respectively electrically connected with the controller.
As another embodiment of the application, a third temperature sensor for detecting the rolling temperature of the continuous casting billet is arranged at the inlet of the rolling mill;
the third temperature sensor is electrically connected with the controller.
As another embodiment of this application, the entrance and the exit of intermediate frequency induction furnace are equipped with a thermoinduction ware that is used for detecting continuous casting billet head and tail temperature respectively, thermoinduction ware with controller electric connection.
The utility model provides a stick line rolling production line's beneficial effect lies in: compared with the prior art, the utility model discloses stick wire rod is directly rolled production line and is provided with the transfer track, can with the continuous casting billet of producing in the conticaster and convey to rolling mill in rolling, and the transfer track can be at the in-process of continuous casting billet conveying, sorts the continuous casting billet, the rectification to guarantee the rolling high efficiency of continuous casting billet, and then improved the rolling efficiency of continuous casting billet. A medium-frequency induction furnace is arranged between the continuous casting machine and the rolling mill, and rapid heat compensation is carried out on the continuous casting billet which is subjected to temperature drop in the conveying process, so that the condition that the continuous casting billet meets the rolling temperature when entering the rolling mill is ensured, and the rolling quality of the continuous casting billet is improved; moreover, the medium frequency induction furnace can effectively reduce the energy consumption, and can more quickly perform heat compensation on the continuous casting billet. The utility model provides a stick line rolling production line is through the transfer orbit and the intermediate frequency induction furnace that set up, quick carries out the concurrent heating to the continuous casting billet that takes place the temperature drop, makes the temperature of continuous casting billet satisfy rolling temperature, can improve the rolling efficiency of continuous casting billet, can improve the production quality of continuous casting billet simultaneously; in addition, energy consumption can be reduced, and the practicability is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a straight rolling production line for rod and wire rods according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a knockout roller way (a roller way sliding seat is connected with a lower line end) of a straight rolling production line for rod and wire materials provided by the embodiment of the utility model;
FIG. 3 is a top view of FIG. 2;
in the figure: 10. a continuous casting machine; 20. a rolling mill; 21. a third temperature sensor; 30. a transfer rail; 31. a continuous casting rollgang; 32. a knockout roller bed; 321. a pyrometer; 322. a roller bed sliding seat; 323. a delivery end; 324. a lower wire end; 33. rapidly transporting the roller way; 331. a first direct-feeding roller bed; 332. a second direct-feeding roller way; 333. a first temperature sensor; 34. a transition roller way; 341. a cantilever roller bed; 342. a machine front roller way; 40. a medium frequency induction furnace; 41. a thermal sensor; 42. a second temperature sensor; 50. and (5) continuously casting a blank.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to fig. 3, a rod and wire rod direct rolling production line according to the present invention will now be described. The rod and wire straight rolling production line comprises a continuous casting machine 10, a rolling machine 20, a conveying track 30, a medium frequency induction furnace 40 and a matched controller. The conveying rail 30 is disposed at an intermediate position between the continuous casting machine 10 and the rolling mill 20, and is used for sorting, rectifying and transferring the continuous casting slab 50 produced by the continuous casting machine 10 to the rolling mill 20. The intermediate frequency induction furnace 40 is located between the continuous casting machine 10 and the rolling mill 20, and is connected with the conveying track 30, and is used for performing rapid heat compensation on the continuous casting billet 50 transferred by the conveying track 30.
The utility model provides a stick line rolling production line, the working method is: the continuous casting billet 50 produced in the continuous casting machine 10 is directly received by the conveying track 30 at the outlet of the continuous casting machine 10, the conveying track quickly conveys the continuous casting billet 50 to the intermediate frequency induction furnace 40, and the continuous casting billet 50 is rectified and sorted in the conveying process; the sorted continuous casting billets 50 are continuously transferred backwards and enter the intermediate frequency induction furnace 40, and the intermediate frequency induction furnace 40 performs rapid heat compensation on the continuous casting billets 50; the reheated slab 50 is transferred to the rolling mill 20 for rolling.
The utility model provides a straight rolling production line of excellent wire rod, compared with the prior art, the utility model discloses straight rolling production line of excellent wire rod is provided with transfer track 30, can be with the continuous casting billet 50 of producing in conticaster 10 and convey to rolling mill 20 in rolling, and transfer track 30 can sort continuous casting billet 50 at the in-process of continuous casting billet 50 conveying, the rectification to guarantee the rolling high efficiency of continuous casting billet 50, and then improved continuous casting billet 50's rolling efficiency. An intermediate frequency induction furnace 40 is arranged between the continuous casting machine 10 and the rolling mill 20, and is used for rapidly supplementing heat to the continuous casting blank 50 with temperature drop during transmission so as to ensure that the continuous casting blank 50 meets the rolling temperature when entering the rolling mill 20, and further improve the rolling quality of the continuous casting blank 50; moreover, the medium frequency induction furnace 40 that sets up can effectual reduction energy's consumption, and can be more quick carry out the concurrent heating to continuous casting billet 50. The controller can control the transfer speed of the transfer rail 30 to the continuous cast slab 50 and also control the heating power of the intermediate frequency induction furnace 40. The utility model provides a stick line rolling production line is through the transfer orbit 30 and the intermediate frequency induction furnace 40 that set up, carries out the concurrent heating to the continuous casting billet 50 that takes place the temperature drop fast, makes the temperature of continuous casting billet 50 satisfy rolling temperature, can improve the rolling efficiency of continuous casting billet 50, can improve the production quality of continuous casting billet 50 simultaneously; in addition, energy consumption can be reduced, and the practicability is high.
As a specific embodiment of the present invention, please refer to fig. 1 to 3 together, the conveying track 30 includes a continuous casting roller conveyor 31, a knockout roller 32 and a fast conveying roller 33. The continuous casting rollgang 31 is located at the middle position of the rolling mill 20 and the knockout rollgang 32, and conveys the continuous casting billets 50 coming out of the continuous casting machine 10, the rated speed of the continuous casting rollgang 31 is 90m/min, and the continuous casting rollgang 31 is provided with a plurality of continuous casting rollgang rollers, the multi-strand continuous casting billets 50 which are going out of the continuous casting machine 10 and are cut correspond to the continuous casting rollgang 31 of the continuous casting machine, and the continuous casting billets 50 arriving at the knockout rollgang 32 are sorted according to the arrival time. And one end of the ejection roller way 32 is connected with the continuous casting conveying roller way 31 and is used for sorting and transferring the multi-flow continuous casting blank 50 transferred by the continuous casting conveying roller way 31 backwards, sorting the continuous casting blank 50 with lower temperature on the ejection roller way 32 and performing offline treatment, and directly conveying the blank with qualified temperature onto the rapid conveying roller way 33. One end of the rapid transport roller way 33 is connected with the other end of the knockout roller way 32, the other end is connected with the intermediate frequency induction furnace 40, the rated speed of the rapid transport roller way is 200m/min, and the maximum speed can be 240m/min, and the rapid transport roller way is used for rapidly transferring the continuous casting billet 50. Wherein, the continuous casting rollgang 31, the knockout rollgang 32 and the rapid transportation rollgang 33 are electrically connected with the controller respectively. The controller can control and adjust the transmission speed of the continuous casting conveying roller way 31, the knockout roller way 32 and the rapid conveying roller way 33 so as to facilitate better transfer of the continuous casting 50.
In this embodiment, realize the rapid transit of continuous casting billet 50 through continuous casting rollgang 31, knockout roll table 32 and rapid transit roll table 33 to sort it in the transportation process of continuous casting billet 50, rolling efficiency and rolling quality that can effectual assurance product. In addition, the speed difference between the continuous casting conveying roller way 31, the knockout roller way 32 and the rapid transport roller way 33 can ensure the sorting work and the rapid transmission of the continuous casting billet 50.
As a specific implementation manner of the rod and wire bar direct rolling production line provided in the embodiment of the present invention, please refer to fig. 1 to 3 together, the rapid transport roller table 33 includes a first direct roller table 331 and a second direct roller table 332. Wherein, one end of the first direct-feeding roller table 331 is connected to the ejection roller table 32, and can adjust the multi-strand continuous casting slab 50 conveyed by the ejection roller table 32 into a single stream and convey the single stream backwards. One end of the second direct-feeding roller table 332 is connected to the first direct-feeding roller table 331, and the other end is connected to the intermediate frequency induction furnace 40, and is capable of receiving the single-flow continuous casting slab 50 transferred from the first direct-feeding roller table 331 and rapidly transferring the single-flow continuous casting slab to the intermediate frequency induction furnace 40. This kind of structure is convenient for go on in order in the continuous casting billet 50 data send process, and then guarantees rolling going on in order.
As an embodiment of the present invention, please refer to fig. 1 to 3 together, a plurality of first temperature sensors 333 for detecting the temperature of the continuous casting slab 50 and positioning the position of the continuous casting slab 50 are disposed on the rapid transport roller way 33, and the plurality of first temperature sensors 333 are distributed on the first direct-feeding roller way 331 and the second direct-feeding roller way 332 along the traveling direction of the continuous casting slab 50. The first temperature sensor 333 can facilitate timely observation of the traveling position and the traveling state of the slab 50 to determine the conveying time of the next slab 50, thereby further ensuring the orderly conveyance of the slab 50. The plurality of first temperature sensors 333 are electrically connected to the controller, respectively, so that the traveling position of the continuous casting slab 50 can be observed in time.
In this embodiment, taking four first temperature sensors 333 as an example, the number 1 first temperature sensor 333, the number 2 first temperature sensor 333, the number 3 first temperature sensor 333, and the number 4 first temperature sensor 333 as examples, assuming that the speed of the continuous casting rollgang 31 is 90m/min and the speed of the rapid transport rollgang 33 is 240m/min, the time for the continuous casting slab 50 to reach the number 2 first temperature sensor 333 from the continuous casting rollgang 31 is 46s, the time for the continuous casting slab to reach the number 3 first temperature sensor 333 is 53s, and the time for the continuous casting slab to reach the number 4 first temperature sensor 333 is about 59 s. The first temperature sensor 333 can be used as a reference point for the conveying rhythm of the slab 50. When the number of the six streams is six, when the previous continuous casting billet 50 reaches the No. 3 first temperature sensor 333, the discharging roller table 32 starts to send the next continuous casting billet 50; in the case of five streams, when the previous slab 50 reaches the first temperature sensor 333 No. 4, the ejection table 32 starts to feed the next slab 50. This kind of mode of observing in real time mainly is carried in order for guaranteeing continuous casting billet 50, prevents the interference between continuous casting billet 50, and then guarantees the rolling orderly progress of rolling mill 20. (Note: when there are six streams, the continuous casting machine 10 is a six-stream billet continuous casting machine 10 producing a billet having an end face of 165mm × 165mm, and the fixed length of the continuous casting slab 50 is 12 m.)
As an embodiment of the present invention, please refer to fig. 1 to fig. 3 together, the transmission track further includes a transition roller way 34 for adjusting the transmission speed of the continuous casting slab 50, and the transition roller way 34 includes a cantilever roller way 341 and a pre-machine roller way 342. Wherein, cantilever roll table 341 is located between rapid transport roll table 33 and intermediate frequency induction furnace 40, can integrate the transmission speed that continuous casting billet 50 got into intermediate frequency induction furnace 40 by rapid transport roll table 33, even high-speed limit low-speed to adapt to the transmission speed of intermediate frequency induction furnace 40. The front roller 342 is located between the intermediate frequency induction furnace 40 and the rolling mill 20, and can integrate the transmission speed of the continuous casting slab 50 entering the rolling mill 20 from the intermediate frequency induction furnace 40, even if the continuous casting slab 50 is transmitted out from the intermediate frequency induction furnace 40, the rolling speed of the rolling mill 20 can be adapted before entering the rolling mill 20. The arrangement of the transition roller way 34 can ensure that the rhythm of the continuous casting blank 50 is adapted to the heat supplementing and the rolling transmission speed, thereby ensuring the orderly and safe rolling.
As the embodiment of the utility model provides a stick wire rod is directly rolled a specific implementation mode of production line, please refer to collectively and draw together 1 to fig. 3, knockout roll table 32 entrance is equipped with the pyrometer 321 that is used for detecting the continuous casting billet 50 head temperature that passes out in conticaster 10, pyrometer 321 and controller electric connection, pyrometer 321 can detect the continuous casting billet 50's that passes on the continuous casting rollgang 31 temperature, transmit the data information of the unqualified continuous casting billet 50 of temperature for the controller, so that the processing of going off the production line, and then improve the rolling quality of product.
As a specific implementation manner of the rod and wire direct rolling production line provided in the embodiment of the present invention, please refer to fig. 1 to 3 together, the knockout roller bed 32 includes a roller bed sliding seat 322, a transmission end 323 and a lower line end 324. Wherein, roller table sliding seat 322 below is equipped with sliding guide along the direction with continuous casting rollgang 31 vertically, and roller table sliding seat 322 can slide on sliding guide, and the discharge gate end can meet with transmission end 323 respectively at the slip in-process discharge gate end, can be convenient for multithread continuous casting billet 50 and carry out the letter sorting processing. The transfer end 323 is opposite to the position of the continuous casting conveying roller way 31, is funnel-shaped, can be connected with the roller way sliding seat 322 at the end with a large opening, and can be connected with the rapid conveying roller way 33 at the end with a small opening, so that the qualified continuous casting blanks 50 sorted by the roller way sliding seat 322 can be rectified and transferred to the rapid conveying roller way 33. The lower line end 324 is located on one side of the transfer end 323, namely, on the left side or the right side of the transfer end 323, is arranged in parallel with the transfer end 323, can be connected with the sliding seat 322 of the sliding roller way, and can carry out offline treatment on unqualified continuous casting billets 50 sorted by the sliding seat 322 of the roller way. This kind of sorting mode can guarantee that unqualified continuous casting billet 50 rolls off the production line fast and handles, can improve the rolling efficiency of product, has guaranteed the rolling quality of product.
In this embodiment, a plurality of sets of roller ways are arranged on the upper portion of the roller way sliding seat 322, the number of the sets of roller ways corresponds to the flow number of the continuous casting conveying roller way 31, a plurality of rollers are arranged on each set of roller ways at intervals, and each set of rollers are driven independently and are electrically connected with the controller; the bottom of the roller way sliding seat 322 is provided with a traveling wheel which can roll on the sliding guide rail; the roller way sliding seat 322 is further connected with a driver, and the driver can drive the roller way sliding seat 322 to slide back and forth along the direction perpendicular to the continuous casting conveying roller way 31, so that the roller way sliding seat 322 can be connected with the transmission end 323 or the lower line end 324 respectively. In addition, the driver can be a hydraulic telescopic cylinder and is electrically connected with the controller. The feed end of each group of roller ways is provided with a pyrometer 321, when sorting is carried out, a controller firstly analyzes according to data transmitted by the pyrometers 321, and the continuous casting billets 50 meeting the temperature requirement after continuous casting are qualified and are directly transmitted to a transmission end 323; the continuous casting billets 50 which cannot meet the temperature requirement after continuous casting are unqualified, the roller way sliding seat 322 slides to the outlet end along the direction perpendicular to the conveying direction to be connected with the feed inlet of the lower end 324, the roller way where the unqualified continuous casting billets 50 are located works, and the unqualified continuous casting billets 50 are transferred to the lower end 324 for lower line treatment.
As an embodiment of the present invention, please refer to fig. 1 to 3 together, a plurality of second temperature sensors 42 for detecting the temperature of the continuous casting slab 50 and positioning the continuous casting slab 50 are arranged in the intermediate frequency induction furnace 40, and the plurality of second temperature sensors 42 are arranged along the advancing direction of the continuous casting slab 50 at intervals. The second temperature sensors 42 are electrically connected to the controller, respectively. The setting of a plurality of second temperature sensor 42 more can carry out in time observation temperature and position to the continuous casting billet 50 that is arranged in intermediate frequency induction furnace 40, and second temperature sensor 42 gives the controller with data transfer, and the controller passes through the heating power of data information adjustment intermediate frequency induction furnace 40, when further guaranteeing that continuous casting billet 50 leaves in intermediate frequency induction furnace 40, its head and tail temperature difference keeps in fixed range, and then improves continuous casting billet 50's rolling quality.
As a specific implementation manner of the rod and wire direct rolling production line provided by the embodiment of the present invention, please refer to fig. 1 to 3 together, a third temperature sensor 21 for detecting the rolling temperature of the continuous casting slab 50 is disposed at the inlet of the rolling mill 20. The third temperature sensor 21 is electrically connected to the controller. The third temperature sensor 21 can further detect the temperature of the continuous casting slab 50 entering the rolling mill 20 so as to ensure the rolling effect of the continuous casting slab 50.
As a specific implementation manner of the rod and wire direct rolling production line provided by the embodiment of the present invention, please refer to fig. 1 to 3 together, a thermal sensor 41 for detecting the head and tail temperature of the continuous casting billet 50 is respectively disposed at the inlet and the outlet of the intermediate frequency induction furnace 40, and the thermal sensor 41 is electrically connected to the controller. The inlet and the outlet of the medium frequency induction furnace 40 are respectively provided with a thermal sensor 41, the thermal sensors 41 can detect the head temperature and the tail temperature of the continuous casting blank 50 entering or leaving the medium frequency induction furnace 40, the thermal sensors 41 are electrically connected with the controller, and the controller can control the heating time of the medium frequency sensors through temperature data transmitted by the thermal sensors 41 so as to ensure that the continuous casting blank 50 can meet the rolling temperature of the rolling mill 20 and can be convenient for controlling the constant head-tail temperature difference when the continuous casting blank 50 enters the rolling mill 20.
When the continuous casting slab 50 reaches the intermediate frequency induction furnace 40, the head enters the intermediate frequency induction furnace 40, and at the moment, the thermal sensor 41 positioned at the inlet of the intermediate frequency induction furnace 40 detects the temperature of the head of the continuous casting slab 50 and transmits data information to the controller; when the tail part of the continuous casting slab 50 also enters the intermediate frequency induction furnace 40 along with the conveying and feeding of the continuous casting slab 50, the thermal sensor 41 positioned at the inlet of the intermediate frequency induction furnace 40 detects the temperature of the tail part of the continuous casting slab 50 and transmits data to the controller; the controller controls the heating power of the intermediate frequency induction furnace 40 according to the head-tail temperature difference of the continuous casting billet 50, and the temperature of the continuous casting billet 50 can reach the rolling temperature. When the head of the continuous casting slab 50 leaves the intermediate frequency induction furnace 40, the heat sensor 41 positioned at the outlet of the intermediate frequency induction furnace 40 measures the head temperature of the continuous casting slab 50 and transmits data to the controller, the controller controls the heating power of the intermediate frequency induction furnace 40 according to the transmitted data to heat the tail of the continuous casting slab 50, and when the tail comes out of the intermediate frequency induction furnace 40 again, the difference between the temperature and the head temperature is kept within a fixed range.
To the utility model provides a stick line material vertical rolling production line, what need explain is:
A. the thermal sensor 41 detects the following modes: when the head of the continuous casting billet 50 enters the intermediate frequency induction furnace 40, a thermal sensor 41 positioned at the inlet of the intermediate frequency induction furnace 40 carries out thermal detection on the continuous casting billet, one temperature is collected every second, 10 continuous temperature collections are collected, and the average value is taken to obtain the head temperature when the continuous casting billet enters the furnace; when the continuous casting billet 50 is discharged, the thermal sensor 41 positioned at the outlet of the intermediate frequency induction furnace 40 carries out thermal detection on the head of the continuous casting billet 50, and the detection principle is the same as that when the continuous casting billet 50 enters the furnace. This detection principle is also applied to the first temperature sensor 333 and the second temperature sensor 42.
B. The intermediate frequency induction furnace 40 can be selected from a parallel resonance inversion type intermediate frequency induction furnace 40, the frequency is 1000Hz, the power is 2500KW, and the heat supplementing effect is 100 ℃.
C. Safe operation and concurrent heating adjustment of the intermediate frequency induction furnace 40:
according to the transmission speed in the intermediate frequency induction furnace 40 and the cooperation of the second temperature sensor 42, when the time of the continuous casting billet 50 in the intermediate frequency induction furnace 40 exceeds 80S, the controller controls the intermediate frequency induction furnace 40 to give an alarm and automatically cut off the power supply, and the continuous casting billet 50 is prevented from damaging the intermediate frequency induction furnace 40 due to transition heating burning.
Due to the influence of the ambient temperature and the transfer timing of the continuous casting slab 50, the temperature difference between different continuous casting slabs 50 before reaching the medium frequency induction is large. In order to ensure that the temperature of the continuous casting billet 50 after exiting the intermediate frequency induction furnace 40 is uniform, the controller can automatically adjust the transmission speed and the voltage of the intermediate frequency induction furnace 40 before the continuous casting billet 50 enters the intermediate frequency induction furnace 40, and then the temperature of the head of the continuous casting billet 50 when exiting the intermediate frequency induction furnace 40 is basically constant. In order to achieve the effect, a self-adaptive temperature control model of the intermediate frequency induction furnace 40 is developed, a closed-loop control mode is adopted, and the running speed of an induction furnace roller way is calculated in an inference mode by detecting the temperature of the continuous casting billet 50 entering the induction furnace and exiting the induction furnace.
D. Specific rolling examples: (Rolling mill 20 Rolling 18 screw size products, ambient temperature 5 ℃ C.)
The rolling mill 20 rolls products with 18 spiral specifications, the rolling rhythm is 55S/root, 5-strand steel is continuously cast and pulled, the pulling speed is 2.65m/S, and the rolling rhythm is matched. The transmission rhythm of the continuous casting billet 50 is controlled as follows: when the previous billet reaches the No. 4 first temperature sensor 333, the knockout roller 32 starts to send the next billet, and 65 billets are rolled per hour. The cutting temperature of each flow of the continuous casting machine 10 is 1005-1010 ℃, the head temperature of the continuous casting slab 50 is 955-980 ℃ when the continuous casting slab is sent out from the slab discharging roller way 32, the temperature before the continuous casting slab reaches the medium frequency induction furnace 40 is 915-945 ℃, the voltage of the medium frequency induction furnace 40 is 1350V, the transmission speed of the medium frequency induction furnace 40 is automatically adjusted according to the temperature of the continuous casting slab 50, the speed value is 9-11 m/min, after the continuous casting slab 50 is sent out from the medium frequency induction furnace 40, the head temperature of the continuous casting slab 50 is 1005-1035 ℃, and the head-tail temperature difference of the continuous casting.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Stick linear material vertical rolling production line, including conticaster and rolling mill, its characterized in that still includes:
the conveying track is used for sorting, rectifying and transferring the continuous casting billet produced by the continuous casting machine to the rolling mill;
the medium-frequency induction furnace is positioned between the continuous casting machine and the rolling mill and is used for quickly supplementing heat to the continuous casting billet transferred by the transfer track; and
a matched controller.
2. The bar-wire direct rolling line according to claim 1, characterized in that said transfer track comprises:
one end of the continuous casting conveying roller way is connected with the continuous casting machine and is used for conveying the multi-strand continuous casting billet coming out of the continuous casting machine;
one end of the knockout roller way is connected with the other end of the continuous casting conveying roller way and is used for sorting and transmitting the multi-flow continuous casting billets transmitted by the continuous casting conveying roller way backwards; and
one end of the rapid conveying roller way is connected with the other end of the ejection roller way, and the other end of the rapid conveying roller way is connected with the intermediate frequency induction furnace and used for rapidly transferring the continuous casting billets;
the continuous casting conveying roller way, the knockout roller way and the rapid transport roller way are respectively electrically connected with the controller.
3. The bar-wire direct rolling line of claim 2, wherein the fast transport roller table comprises:
one end of the first direct-feeding roller way is connected with the ejection roller way and is used for adjusting the multi-flow continuous casting billet conveyed by the ejection roller way into a single flow and conveying the single flow continuous casting billet backwards; and
and one end of the second direct-feeding roller way is connected with the first direct-feeding roller way, and the other end of the second direct-feeding roller way is connected with the medium-frequency induction furnace and is used for receiving the single-flow continuous casting billet conveyed by the first direct-feeding roller way and quickly conveying the single-flow continuous casting billet to the medium-frequency induction furnace.
4. The rod and wire direct rolling production line of claim 3, wherein a plurality of first temperature sensors for detecting the temperature of the continuous casting slab and positioning the position of the continuous casting slab are arranged on the rapid transport roller way, and the plurality of first temperature sensors are distributed on the first direct conveying roller way and the second direct conveying roller way at intervals along the traveling direction of the continuous casting slab;
the plurality of first temperature sensors are respectively electrically connected with the controller.
5. The rod and wire direct rolling production line of claim 2, wherein the transfer rail further comprises a transition roller table for adjusting a continuous casting slab transfer speed, the transition roller table comprising:
the cantilever roller way is positioned between the rapid transport roller way and the intermediate frequency induction furnace and is used for integrating the transmission speed of the continuous casting billet from the rapid transport roller way into the intermediate frequency induction furnace; and
and the front roller way is positioned between the intermediate frequency induction furnace and the rolling mill and is used for integrating the transmission speed of the continuous casting billet entering the rolling mill from the intermediate frequency induction furnace.
6. The rod and wire direct rolling production line of claim 2, wherein a pyrometer for detecting the temperature of the head of the continuously cast slab delivered in the continuous casting machine is provided at the entry of the run-out table, and the pyrometer is electrically connected to the controller.
7. The bar and wire direct rolling production line of claim 6, wherein the run-out table comprises:
one end of the roller way sliding seat is connected with the multi-strand continuous casting conveying roller way and is used for receiving and sorting the multi-strand continuous casting blanks transmitted by the continuous casting conveying roller way;
the delivery end is in a funnel shape, the end with the large opening is connected with the roller way sliding seat, the end with the small opening is connected with the rapid transport roller way, and the delivery end is used for rectifying the qualified continuous casting blanks sorted by the roller way sliding seat and delivering the qualified continuous casting blanks to the rapid transport roller way; and
the lower line end is positioned on one side of the transmission end, is arranged in parallel with the transmission end along the direction vertical to the conveying direction, and is used for sorting unqualified continuous casting billets by the roller way sliding seat to carry out lower line;
the roller way sliding seat is also used for sliding back and forth between the transfer end and the lower line end along the direction perpendicular to the conveying direction and respectively conveying qualified or unqualified continuous casting billets to the transfer end or the lower line end.
8. The rod and wire direct rolling production line of any one of claims 1 to 7, wherein a plurality of second temperature sensors for detecting the temperature of the continuous casting slab and positioning the continuous casting slab are arranged in the intermediate frequency induction furnace, and the plurality of second temperature sensors are arranged at intervals along the traveling direction of the continuous casting slab;
the plurality of second temperature sensors are respectively electrically connected with the controller.
9. The rod and wire direct rolling production line according to any one of claims 1 to 7, wherein a third temperature sensor for detecting a rolling temperature of the continuously cast slab is provided at an inlet of the rolling mill;
the third temperature sensor is electrically connected with the controller.
10. The rod and wire direct rolling production line according to any one of claims 1 to 7, wherein a heat sensor for detecting the head-to-tail temperature of the continuous casting billet is arranged at the inlet and the outlet of the intermediate frequency induction furnace, and the heat sensors are electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921913958.4U CN211803064U (en) | 2019-11-06 | 2019-11-06 | Rod and wire rod direct rolling production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921913958.4U CN211803064U (en) | 2019-11-06 | 2019-11-06 | Rod and wire rod direct rolling production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211803064U true CN211803064U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921913958.4U Expired - Fee Related CN211803064U (en) | 2019-11-06 | 2019-11-06 | Rod and wire rod direct rolling production line |
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| Country | Link |
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| CN (1) | CN211803064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833202A (en) * | 2022-04-07 | 2022-08-02 | 中冶赛迪重庆信息技术有限公司 | Blank removing method, system, medium and electronic terminal for improving average temperature of direct rolling |
-
2019
- 2019-11-06 CN CN201921913958.4U patent/CN211803064U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833202A (en) * | 2022-04-07 | 2022-08-02 | 中冶赛迪重庆信息技术有限公司 | Blank removing method, system, medium and electronic terminal for improving average temperature of direct rolling |
| CN114833202B (en) * | 2022-04-07 | 2024-04-12 | 中冶赛迪信息技术(重庆)有限公司 | Method, system, medium and electronic terminal for picking blanks to improve average temperature of straight rolling |
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Granted publication date: 20201030 |