CN210587070U - Intelligent device for online real-time correction of trapezoidal defects of slab section - Google Patents
Intelligent device for online real-time correction of trapezoidal defects of slab section Download PDFInfo
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- CN210587070U CN210587070U CN201921241742.8U CN201921241742U CN210587070U CN 210587070 U CN210587070 U CN 210587070U CN 201921241742 U CN201921241742 U CN 201921241742U CN 210587070 U CN210587070 U CN 210587070U
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Abstract
The utility model discloses an intelligent device for online real-time correction of trapezoidal defects of slab sections, which comprises a crystallizer and a fan-shaped section, wherein the crystallizer is arranged at the top end of the fan-shaped section, and also comprises an infrared measuring device and a crystallizer cooling water system, the infrared measuring device comprises a first infrared measuring device and a second infrared measuring device, wherein the first infrared measuring device is arranged on the outer arc of the fan-shaped section at the tail end, the second infrared measuring device is arranged on the inner arc of the fan-shaped section at the tail end, the crystallizer cooling water system comprises a crystallizer cooling water operation module and a crystallizer cooling water PLC control module, the first infrared measuring device and the second infrared measuring device are respectively and electrically connected with the crystallizer cooling water operation module, the crystallizer cooling water calculation module is electrically connected with the crystallizer cooling water PLC control module, and the crystallizer cooling water PLC control module is used for controlling the amount of cooling water entering and exiting from the inner arc and the outer arc of the crystallizer.
Description
Technical Field
The utility model belongs to the technical field of metallurgical continuous casting equipment, especially, relate to an online intelligent device who revises trapezoidal defect of slab section in real time.
Background
In the long-period production process of a slab continuous casting machine, serious internal defects of corners are caused by the fact that the inner and outer arcs of the cross section of a continuous casting billet product are trapezoidal due to uneven cooling of the inner and outer arcs of the continuous casting billet or the defects of cooling equipment, and the quality of a hot rolled product is seriously influenced. By combining the standard (YB/T2012-2004) and practical experience, when the width dimension difference of the inner arc and the outer arc of the conventional casting blank is more than +/-5 mm, internal defects such as subcutaneous cracks, corner internal cracks and the like are easy to generate, and the influence on subsequent hot-rolled products can be avoided only through offline grinding treatment.
In order to solve the problems in time before rolling on line, the prior continuous casting production line mainly adopts the technologies of flame surface cleaning, deep grinding treatment and the like, although the effect obviously ensures the quality stability of subsequent products of rolled steel, the yield of the casting blank is greatly reduced, and special naked eyes or special equipment are required to detect on line and perform offline treatment, so that the time and labor are wasted, and the economic benefit is seriously reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide an online intelligent device who revises trapezoidal defect of slab section in real time, overcome among the prior art 1: when the width dimension difference of the inner arc and the outer arc of the conventional casting blank is more than +/-5 mm, internal defects such as subcutaneous cracks, corner internal cracks and the like are easily generated; 2: the casting blank yield is greatly reduced by adopting the technologies of flame surface cleaning, deep grinding treatment and the like; 3: the problems of time and labor waste, serious reduction of economic benefit and the like are caused by the need of on-line detection and off-line treatment by special naked eyes or special equipment.
In order to solve the technical problem, the technical scheme of the utility model is that: an intelligent device for online real-time correction of trapezoidal defects of slab sections comprises a crystallizer and a fan-shaped section, wherein the crystallizer is arranged at the top end of the fan-shaped section, and also comprises an infrared measuring device and a crystallizer cooling water system, the infrared measuring device comprises a first infrared measuring device and a second infrared measuring device, wherein the first infrared measuring device is arranged on the outer arc of the fan-shaped section at the tail end, the second infrared measuring device is arranged on the inner arc of the fan-shaped section at the tail end, the crystallizer cooling water system comprises a crystallizer cooling water operation module and a crystallizer cooling water PLC control module, the first infrared measuring device and the second infrared measuring device are respectively and electrically connected with the crystallizer cooling water operation module, the crystallizer cooling water calculation module is electrically connected with the crystallizer cooling water PLC control module, and the crystallizer cooling water PLC control module is used for controlling the amount of cooling water entering and exiting from the inner arc and the outer arc of the crystallizer.
Preferably, the first infrared measuring device and the second infrared measuring device are infrared distance measuring instruments, wherein the first infrared measuring device and the second infrared measuring device are arranged on the same vertical line, and the first infrared measuring device and the second infrared measuring device are used for measuring the width size of inner and outer arcs of the casting blank.
Preferably, the crystallizer comprises a crystallizer inner arc, a crystallizer outer arc and a crystallizer inner and outer arc cooling water system, wherein a casting blank is manufactured between the inner arc of the crystallizer and the outer arc of the crystallizer, the cooling water system for the inner arc and the outer arc of the crystallizer comprises an inner arc cooling water path and an outer arc cooling water path, wherein the inner arc cooling water path comprises an inner arc cooling water inlet path and an inner arc cooling water outlet path, wherein the inner arc input end of the crystallizer is connected with the inner arc cooling water inlet path, wherein the output end of the inner arc of the crystallizer is connected with an inner arc cooling water outlet channel, the outer arc cooling water channel comprises an outer arc cooling water inlet channel and an outer arc cooling water outlet channel, wherein the outer arc input end of the crystallizer is connected with an outer arc cooling water inlet channel, the outer arc output end of the crystallizer is connected with an outer arc cooling water outlet channel, the inner arc cooling water inlet path and the outer arc cooling water inlet path are respectively connected with a main water inlet pipeline of the crystallizer, and the inner arc cooling water outlet path and the outer arc cooling water outlet path are respectively connected with a water treatment station.
Preferably, the crystallizer cooling water PLC control module comprises a PLC control center, a temperature transmitter, an electromagnetic flowmeter and a pneumatic control valve, wherein the temperature transmitter comprises a first temperature transmitter, a second temperature transmitter and a third temperature transmitter, the electromagnetic flowmeter comprises a first electromagnetic flowmeter and a second electromagnetic flowmeter, the pneumatic control valve comprises a first pneumatic control valve and a second pneumatic control valve, a first temperature transmitter, a first electromagnetic flowmeter and a first pneumatic control valve are sequentially arranged on a pipeline between the inner arc cooling water outlet channel and the water treatment station, the first temperature transmitter, the first electromagnetic flowmeter and the first pneumatic control valve are respectively and electrically connected with the PLC control center, a second temperature transmitter, a second electromagnetic flowmeter and a second pneumatic control valve are sequentially arranged on a pipeline between the outer arc cooling water outlet channel and the water treatment station, the second temperature transmitter, the second electromagnetic flow meter and the second pneumatic regulating valve are respectively and electrically connected with a PLC control center, a third temperature transmitter is arranged on a pipeline between the inner arc cooling water inlet pipeline and the crystallizer total water inlet pipeline, the third temperature transmitter is electrically connected with the PLC control center, the PLC control center is a single chip microcomputer, and the PLC control center is connected with the crystallizer cooling water operation module.
Compared with the prior art, the utility model has the advantages of:
(1) the utility model discloses an install in the export of terminal fan-shaped section two sets of infrared measuring device that cold district exports promptly and measure the casting blank cross section inside and outside arc width size and will detect data transmission for crystallizer cooling water operation module, this module is through comparison, calculation, after the optimization treatment, through the real-time closed-loop control crystallizer inside and outside arc cooling water system of crystallizer cooling water PLC control module, change the inside and outside arc surface temperature after the casting blank goes out the crystallizer, thereby control the linear shrinkage of casting blank in the follow-up cooling process, in order to revise the casting blank because the uneven slab section trapezoidal defect that brings of cooling and the problem of the casting blank internal quality that arouses; the utility model greatly reduces the problem of internal defects of the casting blank, improves the quality of the casting blank, improves the yield of the casting blank and the subsequent rolled material, and improves the economic benefit of enterprises;
(2) the utility model discloses a real-time automatic control crystallizer internal and external arc cooling water system of cooling water PLC control module, revise the temperature that the casting blank internal and external arc goes out the crystallizer from the source, it is fast, saved manpower and materials, improved the production efficiency and the quality of finished product casting blank greatly;
(3) the utility model discloses calculation method is quick reasonable, and data are reliable, can effectively adjust the inside and outside arc surface temperature behind the casting blank play crystallizer, has avoided follow-up off-line coping processing, greatly reduced the cost.
Drawings
FIG. 1 is a schematic structural diagram of an intelligent device for online real-time correction of trapezoidal defects of slab sections according to the present invention;
FIG. 2 is a schematic view of an A-direction structure of an intelligent device for online real-time correction of trapezoidal defects of slab sections;
FIG. 3 is an installation schematic diagram of a crystallizer inner and outer arc cooling water system and a crystallizer cooling water PLC control module of the intelligent device for online real-time correction of slab section trapezoidal defects of the utility model;
FIG. 4 shows a process flow diagram of a correction method of an intelligent device for correcting trapezoidal defects of slab sections on line in real time.
Description of reference numerals:
1-a first infrared measuring device, 2-a second infrared measuring device, 3-a sector outer arc, 4-a sector inner arc, 5-a crystallizer inner arc, 6-a crystallizer outer arc, 7-an inner arc cooling water inlet path, 8-an inner arc cooling water outlet path, 9-an outer arc cooling water inlet path, 10-an outer arc cooling water outlet path, 11-a first temperature transmitter, 12-a second temperature transmitter, 13-a third temperature transmitter, 14-a first electromagnetic flowmeter, 15-a second electromagnetic flowmeter, 16-a first pneumatic regulating valve, 17-a second pneumatic regulating valve, 18-a crystallizer, and 19-a sector.
Detailed Description
The following description of the embodiments of the present invention is provided in connection with the following embodiments:
it should be noted that the structures, ratios, sizes, etc. illustrated in the present specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of the people skilled in the art, and are not used to limit the limit conditions that the present invention can be implemented, and any modifications of the structures, changes of the ratio relationships or adjustments of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the functions and the achievable purposes of the present invention.
Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Infrared distancer, crystallizer, fan-shaped section, temperature transmitter, electromagnetic flowmeter, pneumatic control valve be prior art.
Example 1
As shown in fig. 1, 2 and 4, the utility model discloses an intelligent device for online real-time correction of trapezoidal defects of slab sections, which comprises a crystallizer 18 and a fan-shaped section 19, wherein the crystallizer is arranged at the top end of the fan-shaped section, and further comprises an infrared measuring device and a crystallizer cooling water system, the infrared measuring device comprises a first infrared measuring device 1 and a second infrared measuring device 2, wherein the first infrared measuring device 1 is arranged on the outer arc 3 of the fan-shaped section at the tail end, the second infrared measuring device 2 is arranged on the inner arc 4 of the fan-shaped section at the tail end, the crystallizer cooling water system comprises a crystallizer cooling water calculation module and a crystallizer cooling water PLC control module, the first infrared measuring device 1 and the second infrared measuring device 2 are respectively and electrically connected with the crystallizer cooling water calculation module, wherein the crystallizer cooling water calculation module is electrically connected with the crystallizer cooling water PLC control module, the crystallizer cooling water PLC control module is used for controlling the amount of cooling water entering and exiting the inner arc and the outer arc of the crystallizer.
Example 2
As shown in fig. 1, 2 and 4, the utility model discloses an intelligent device for online real-time correction of trapezoidal defects of slab sections, which comprises a crystallizer 18 and a fan-shaped section 19, wherein the crystallizer is arranged at the top end of the fan-shaped section, and further comprises an infrared measuring device and a crystallizer cooling water system, the infrared measuring device comprises a first infrared measuring device 1 and a second infrared measuring device 2, wherein the first infrared measuring device 1 is arranged on the outer arc 3 of the fan-shaped section at the tail end, the second infrared measuring device 2 is arranged on the inner arc 4 of the fan-shaped section at the tail end, the crystallizer cooling water system comprises a crystallizer cooling water calculation module and a crystallizer cooling water PLC control module, the first infrared measuring device 1 and the second infrared measuring device 2 are respectively and electrically connected with the crystallizer cooling water calculation module, wherein the crystallizer cooling water calculation module is electrically connected with the crystallizer cooling water PLC control module, the crystallizer cooling water PLC control module is used for controlling the amount of cooling water entering and exiting the inner arc and the outer arc of the crystallizer.
As shown in fig. 1 and 2, preferably, the first infrared measuring device 1 and the second infrared measuring device 2 are infrared distance meters, wherein the first infrared measuring device 1 and the second infrared measuring device 2 are arranged on the same vertical line, and the first infrared measuring device 1 and the second infrared measuring device 2 are used for measuring the width of the inner arc and the outer arc of the casting blank.
Example 3
As shown in fig. 1, 2 and 4, the utility model discloses an intelligent device for online real-time correction of trapezoidal defects of slab sections, which comprises a crystallizer 18 and a fan-shaped section 19, wherein the crystallizer is arranged at the top end of the fan-shaped section, and further comprises an infrared measuring device and a crystallizer cooling water system, the infrared measuring device comprises a first infrared measuring device 1 and a second infrared measuring device 2, wherein the first infrared measuring device 1 is arranged on the outer arc 3 of the fan-shaped section at the tail end, the second infrared measuring device 2 is arranged on the inner arc 4 of the fan-shaped section at the tail end, the crystallizer cooling water system comprises a crystallizer cooling water calculation module and a crystallizer cooling water PLC control module, the first infrared measuring device 1 and the second infrared measuring device 2 are respectively and electrically connected with the crystallizer cooling water calculation module, wherein the crystallizer cooling water calculation module is electrically connected with the crystallizer cooling water PLC control module, the crystallizer cooling water PLC control module is used for controlling the amount of cooling water entering and exiting the inner arc and the outer arc of the crystallizer.
As shown in fig. 1 and 2, preferably, the first infrared measuring device 1 and the second infrared measuring device 2 are infrared distance meters, wherein the first infrared measuring device 1 and the second infrared measuring device 2 are arranged on the same vertical line, and the first infrared measuring device 1 and the second infrared measuring device 2 are used for measuring the width of the inner arc and the outer arc of the casting blank.
As shown in fig. 3, preferably, the mold 18 includes a mold inner arc 5, a mold outer arc 6 and a mold inner and outer arc cooling water system, wherein a casting blank is manufactured between the mold inner arc 5 and the mold outer arc 6, the mold inner and outer arc cooling water system includes an inner arc cooling water path and an outer arc cooling water path, wherein the inner arc cooling water path includes an inner arc cooling water inlet path 7 and an inner arc cooling water outlet path 8, wherein an input end of the mold inner arc 5 is connected with the inner arc cooling water inlet path 7, an output end of the mold inner arc 5 is connected with the inner arc cooling water outlet path 8, the outer arc cooling water path includes an outer arc cooling water inlet path 9 and an outer arc cooling water outlet path 10, wherein an input end of the mold outer arc 6 is connected with the outer arc cooling water inlet path 9, an output end of the mold outer arc 6 is connected with the outer arc cooling water outlet path 10, the inner arc cooling water inlet path 7 and the outer arc cooling water, wherein the inner arc cooling water outlet path 8 and the outer arc cooling water outlet path 10 are respectively connected with a water treatment station.
Example 4
As shown in fig. 1, 2 and 4, the utility model discloses an intelligent device for online real-time correction of trapezoidal defects of slab sections, which comprises a crystallizer 18 and a fan-shaped section 19, wherein the crystallizer is arranged at the top end of the fan-shaped section, and further comprises an infrared measuring device and a crystallizer cooling water system, the infrared measuring device comprises a first infrared measuring device 1 and a second infrared measuring device 2, wherein the first infrared measuring device 1 is arranged on the outer arc 3 of the fan-shaped section at the tail end, the second infrared measuring device 2 is arranged on the inner arc 4 of the fan-shaped section at the tail end, the crystallizer cooling water system comprises a crystallizer cooling water calculation module and a crystallizer cooling water PLC control module, the first infrared measuring device 1 and the second infrared measuring device 2 are respectively and electrically connected with the crystallizer cooling water calculation module, wherein the crystallizer cooling water calculation module is electrically connected with the crystallizer cooling water PLC control module, the crystallizer cooling water PLC control module is used for controlling the amount of cooling water entering and exiting the inner arc and the outer arc of the crystallizer.
As shown in fig. 1 and 2, preferably, the first infrared measuring device 1 and the second infrared measuring device 2 are infrared distance meters, wherein the first infrared measuring device 1 and the second infrared measuring device 2 are arranged on the same vertical line, and the first infrared measuring device 1 and the second infrared measuring device 2 are used for measuring the width of the inner arc and the outer arc of the casting blank.
As shown in fig. 3, preferably, the mold 18 includes a mold inner arc 5, a mold outer arc 6 and a mold inner and outer arc cooling water system, wherein a casting blank is manufactured between the mold inner arc 5 and the mold outer arc 6, the mold inner and outer arc cooling water system includes an inner arc cooling water path and an outer arc cooling water path, wherein the inner arc cooling water path includes an inner arc cooling water inlet path 7 and an inner arc cooling water outlet path 8, wherein an input end of the mold inner arc 5 is connected with the inner arc cooling water inlet path 7, an output end of the mold inner arc 5 is connected with the inner arc cooling water outlet path 8, the outer arc cooling water path includes an outer arc cooling water inlet path 9 and an outer arc cooling water outlet path 10, wherein an input end of the mold outer arc 6 is connected with the outer arc cooling water inlet path 9, an output end of the mold outer arc 6 is connected with the outer arc cooling water outlet path 10, the inner arc cooling water inlet path 7 and the outer arc cooling water, wherein the inner arc cooling water outlet path 8 and the outer arc cooling water outlet path 10 are respectively connected with a water treatment station.
As shown in fig. 3, preferably, the crystallizer cooling water PLC control module includes a PLC control center, a temperature transmitter, an electromagnetic flowmeter and a pneumatic control valve, wherein the temperature transmitter includes a first temperature transmitter 11, a second temperature transmitter 12 and a third temperature transmitter 13, wherein the electromagnetic flowmeter includes a first electromagnetic flowmeter 14 and a second electromagnetic flowmeter 15, wherein the pneumatic control valve includes a first pneumatic control valve 16 and a second pneumatic control valve 17, a first temperature transmitter 11, a first electromagnetic flowmeter 14 and a first pneumatic control valve 16 are sequentially disposed on a pipeline between the inner arc cooling water outlet path 8 and the water treatment station, wherein the first temperature transmitter 11, the first electromagnetic flowmeter 14 and the first pneumatic control valve 16 are respectively electrically connected to the PLC control center, and a second temperature transmitter 12, a second electromagnetic flowmeter 12, a third electromagnetic flowmeter and a pneumatic control valve 16 are sequentially disposed on a pipeline between the outer arc cooling water outlet path 10 and the water treatment station, Second electromagnetic flowmeter 15 and second pneumatic control valve 17, wherein second temperature transmitter 12, second electromagnetic flowmeter 15 and second pneumatic control valve 17 electricity respectively connect PLC control center, be equipped with third temperature transmitter 13 on the pipeline between inner arc cooling inlet channel 7 and outer arc cooling inlet channel 9 and the crystallizer total inlet channel, wherein third temperature transmitter 13 electricity is connected PLC control center, PLC control center is the singlechip, and wherein PLC control center connects crystallizer cooling water calculation module.
Example 5
As shown in fig. 1, 2 and 4, the utility model discloses an intelligent device for online real-time correction of trapezoidal defects of slab sections, which comprises a crystallizer 18 and a fan-shaped section 19, wherein the crystallizer is arranged at the top end of the fan-shaped section, and further comprises an infrared measuring device and a crystallizer cooling water system, the infrared measuring device comprises a first infrared measuring device 1 and a second infrared measuring device 2, wherein the first infrared measuring device 1 is arranged on the outer arc 3 of the fan-shaped section at the tail end, the second infrared measuring device 2 is arranged on the inner arc 4 of the fan-shaped section at the tail end, the crystallizer cooling water system comprises a crystallizer cooling water calculation module and a crystallizer cooling water PLC control module, the first infrared measuring device 1 and the second infrared measuring device 2 are respectively and electrically connected with the crystallizer cooling water calculation module, wherein the crystallizer cooling water calculation module is electrically connected with the crystallizer cooling water PLC control module, the crystallizer cooling water PLC control module is used for controlling the amount of cooling water entering and exiting the inner arc and the outer arc of the crystallizer.
As shown in fig. 1 and 2, preferably, the first infrared measuring device 1 and the second infrared measuring device 2 are infrared distance meters, wherein the first infrared measuring device 1 and the second infrared measuring device 2 are arranged on the same vertical line, and the first infrared measuring device 1 and the second infrared measuring device 2 are used for measuring the width of the inner arc and the outer arc of the casting blank.
As shown in fig. 3, preferably, the mold 18 includes a mold inner arc 5, a mold outer arc 6 and a mold inner and outer arc cooling water system, wherein a casting blank is manufactured between the mold inner arc 5 and the mold outer arc 6, the mold inner and outer arc cooling water system includes an inner arc cooling water path and an outer arc cooling water path, wherein the inner arc cooling water path includes an inner arc cooling water inlet path 7 and an inner arc cooling water outlet path 8, wherein an input end of the mold inner arc 5 is connected with the inner arc cooling water inlet path 7, an output end of the mold inner arc 5 is connected with the inner arc cooling water outlet path 8, the outer arc cooling water path includes an outer arc cooling water inlet path 9 and an outer arc cooling water outlet path 10, wherein an input end of the mold outer arc 6 is connected with the outer arc cooling water inlet path 9, an output end of the mold outer arc 6 is connected with the outer arc cooling water outlet path 10, the inner arc cooling water inlet path 7 and the outer arc cooling water, wherein the inner arc cooling water outlet path 8 and the outer arc cooling water outlet path 10 are respectively connected with a water treatment station.
As shown in fig. 3, preferably, the crystallizer cooling water PLC control module includes a PLC control center, a temperature transmitter, an electromagnetic flowmeter and a pneumatic control valve, wherein the temperature transmitter includes a first temperature transmitter 11, a second temperature transmitter 12 and a third temperature transmitter 13, wherein the electromagnetic flowmeter includes a first electromagnetic flowmeter 14 and a second electromagnetic flowmeter 15, wherein the pneumatic control valve includes a first pneumatic control valve 16 and a second pneumatic control valve 17, a first temperature transmitter 11, a first electromagnetic flowmeter 14 and a first pneumatic control valve 16 are sequentially disposed on a pipeline between the inner arc cooling water outlet path 8 and the water treatment station, wherein the first temperature transmitter 11, the first electromagnetic flowmeter 14 and the first pneumatic control valve 16 are respectively electrically connected to the PLC control center, and a second temperature transmitter 12, a second electromagnetic flowmeter 12, a third electromagnetic flowmeter and a pneumatic control valve 16 are sequentially disposed on a pipeline between the outer arc cooling water outlet path 10 and the water treatment station, Second electromagnetic flowmeter 15 and second pneumatic control valve 17, wherein second temperature transmitter 12, second electromagnetic flowmeter 15 and second pneumatic control valve 17 electricity respectively connect PLC control center, be equipped with third temperature transmitter 13 on the pipeline between inner arc cooling inlet channel 7 and outer arc cooling inlet channel 9 and the crystallizer total inlet channel, wherein third temperature transmitter 13 electricity is connected PLC control center, PLC control center is the singlechip, and wherein PLC control center connects crystallizer cooling water calculation module.
Preferably, the method for correcting the trapezoidal defect of the slab section in real time on line comprises the following steps:
step 1) measuring the width size of the outer arc of the cross section of a casting blank by a first infrared measuring device 1 arranged on the outer arc of a tail end fan-shaped section 19, measuring the width size of the inner arc of the cross section of the casting blank by a second infrared measuring device 2 arranged on the inner arc of the tail end fan-shaped section 19, and transmitting the detected data to a cooling water operation module of a crystallizer by the first infrared measuring device 1 and the second infrared measuring device 2;
and 2) calculating through a crystallizer cooling water operation module to judge whether the inner arc cooling water and the outer arc cooling water of the crystallizer 18 need to be corrected, and then correcting the inner arc cooling water and the outer arc cooling water of the crystallizer 18 through a crystallizer cooling water PLC control module.
Example 6
As shown in fig. 1, 2 and 4, the utility model discloses an intelligent device for online real-time correction of trapezoidal defects of slab sections, which comprises a crystallizer 18 and a fan-shaped section 19, wherein the crystallizer is arranged at the top end of the fan-shaped section, and further comprises an infrared measuring device and a crystallizer cooling water system, the infrared measuring device comprises a first infrared measuring device 1 and a second infrared measuring device 2, wherein the first infrared measuring device 1 is arranged on the outer arc 3 of the fan-shaped section at the tail end, the second infrared measuring device 2 is arranged on the inner arc 4 of the fan-shaped section at the tail end, the crystallizer cooling water system comprises a crystallizer cooling water calculation module and a crystallizer cooling water PLC control module, the first infrared measuring device 1 and the second infrared measuring device 2 are respectively and electrically connected with the crystallizer cooling water calculation module, wherein the crystallizer cooling water calculation module is electrically connected with the crystallizer cooling water PLC control module, the crystallizer cooling water PLC control module is used for controlling the amount of cooling water entering and exiting the inner arc and the outer arc of the crystallizer.
As shown in fig. 1 and 2, preferably, the first infrared measuring device 1 and the second infrared measuring device 2 are infrared distance meters, wherein the first infrared measuring device 1 and the second infrared measuring device 2 are arranged on the same vertical line, and the first infrared measuring device 1 and the second infrared measuring device 2 are used for measuring the width of the inner arc and the outer arc of the casting blank.
As shown in fig. 3, preferably, the mold 18 includes a mold inner arc 5, a mold outer arc 6 and a mold inner and outer arc cooling water system, wherein a casting blank is manufactured between the mold inner arc 5 and the mold outer arc 6, the mold inner and outer arc cooling water system includes an inner arc cooling water path and an outer arc cooling water path, wherein the inner arc cooling water path includes an inner arc cooling water inlet path 7 and an inner arc cooling water outlet path 8, wherein an input end of the mold inner arc 5 is connected with the inner arc cooling water inlet path 7, an output end of the mold inner arc 5 is connected with the inner arc cooling water outlet path 8, the outer arc cooling water path includes an outer arc cooling water inlet path 9 and an outer arc cooling water outlet path 10, wherein an input end of the mold outer arc 6 is connected with the outer arc cooling water inlet path 9, an output end of the mold outer arc 6 is connected with the outer arc cooling water outlet path 10, the inner arc cooling water inlet path 7 and the outer arc cooling water, wherein the inner arc cooling water outlet path 8 and the outer arc cooling water outlet path 10 are respectively connected with a water treatment station.
As shown in fig. 3, preferably, the crystallizer cooling water PLC control module includes a PLC control center, a temperature transmitter, an electromagnetic flowmeter and a pneumatic control valve, wherein the temperature transmitter includes a first temperature transmitter 11, a second temperature transmitter 12 and a third temperature transmitter 13, wherein the electromagnetic flowmeter includes a first electromagnetic flowmeter 14 and a second electromagnetic flowmeter 15, wherein the pneumatic control valve includes a first pneumatic control valve 16 and a second pneumatic control valve 17, a first temperature transmitter 11, a first electromagnetic flowmeter 14 and a first pneumatic control valve 16 are sequentially disposed on a pipeline between the inner arc cooling water outlet path 8 and the water treatment station, wherein the first temperature transmitter 11, the first electromagnetic flowmeter 14 and the first pneumatic control valve 16 are respectively electrically connected to the PLC control center, and a second temperature transmitter 12, a second electromagnetic flowmeter 12, a third electromagnetic flowmeter and a pneumatic control valve 16 are sequentially disposed on a pipeline between the outer arc cooling water outlet path 10 and the water treatment station, Second electromagnetic flowmeter 15 and second pneumatic control valve 17, wherein second temperature transmitter 12, second electromagnetic flowmeter 15 and second pneumatic control valve 17 electricity respectively connect PLC control center, be equipped with third temperature transmitter 13 on the pipeline between inner arc cooling inlet channel 7 and outer arc cooling inlet channel 9 and the crystallizer total inlet channel, wherein third temperature transmitter 13 electricity is connected PLC control center, PLC control center is the singlechip, and wherein PLC control center connects crystallizer cooling water calculation module.
Preferably, the method for correcting the trapezoidal defect of the slab section in real time on line comprises the following steps:
step 1) measuring the width size of the outer arc of the cross section of a casting blank by a first infrared measuring device 1 arranged on the outer arc of a tail end fan-shaped section 19, measuring the width size of the inner arc of the cross section of the casting blank by a second infrared measuring device 2 arranged on the inner arc of the tail end fan-shaped section 19, and transmitting the detected data to a cooling water operation module of a crystallizer by the first infrared measuring device 1 and the second infrared measuring device 2;
and 2) calculating through a crystallizer cooling water operation module to judge whether the inner arc cooling water and the outer arc cooling water of the crystallizer 18 need to be corrected, and then correcting the inner arc cooling water and the outer arc cooling water of the crystallizer 18 through a crystallizer cooling water PLC control module.
Preferably, in the step 2), when the width difference of the inner arc and the outer arc of the cross section of the casting blank in the step 1) is less than 5mm and the temperature difference of the inlet water and the outlet water of the inner arc and the outer arc of the crystallizer 18 is less than 9 ℃, the cooling water of the inner arc and the outer arc of the crystallizer 18 is not changed, and normal production is continued;
preferably, in the step 2), when the width difference of the inner arc and the outer arc of the cross section of the casting blank in the step 1) is larger than 5mm and the temperature difference of inlet and outlet water of the inner arc and the outer arc of the crystallizer is lower than 9 ℃, the water amount to be increased of the inner arc or the outer arc of the crystallizer is calculated through a crystallizer cooling water operation module, and correction is performed through a crystallizer cooling water PLC control module so as to correct the temperature of the inner arc and the outer arc of the casting blank out of the crystallizer, thereby correcting the trapezoidal defect of the casting blank and ensuring the external dimensions of the inner arc and the outer arc.
Preferably, in the step 2), when the width difference of the inner arc and the outer arc of the cross section of the casting blank in the step 1) is more than 5mm and the temperature difference of the inlet water and the outlet water of the inner arc and the outer arc of the crystallizer 18 is higher than 9 ℃, stopping the machine for overhauling the crystallizer 18.
Example 7
As shown in fig. 1, 2 and 4, the utility model discloses an intelligent device for online real-time correction of trapezoidal defects of slab sections, which comprises a crystallizer 18 and a fan-shaped section 19, wherein the crystallizer is arranged at the top end of the fan-shaped section, and further comprises an infrared measuring device and a crystallizer cooling water system, the infrared measuring device comprises a first infrared measuring device 1 and a second infrared measuring device 2, wherein the first infrared measuring device 1 is arranged on the outer arc 3 of the fan-shaped section at the tail end, the second infrared measuring device 2 is arranged on the inner arc 4 of the fan-shaped section at the tail end, the crystallizer cooling water system comprises a crystallizer cooling water calculation module and a crystallizer cooling water PLC control module, the first infrared measuring device 1 and the second infrared measuring device 2 are respectively and electrically connected with the crystallizer cooling water calculation module, wherein the crystallizer cooling water calculation module is electrically connected with the crystallizer cooling water PLC control module, the crystallizer cooling water PLC control module is used for controlling the amount of cooling water entering and exiting the inner arc and the outer arc of the crystallizer.
As shown in fig. 1 and 2, preferably, the first infrared measuring device 1 and the second infrared measuring device 2 are infrared distance meters, wherein the first infrared measuring device 1 and the second infrared measuring device 2 are arranged on the same vertical line, and the first infrared measuring device 1 and the second infrared measuring device 2 are used for measuring the width of the inner arc and the outer arc of the casting blank.
As shown in fig. 3, preferably, the mold 18 includes a mold inner arc 5, a mold outer arc 6 and a mold inner and outer arc cooling water system, wherein a casting blank is manufactured between the mold inner arc 5 and the mold outer arc 6, the mold inner and outer arc cooling water system includes an inner arc cooling water path and an outer arc cooling water path, wherein the inner arc cooling water path includes an inner arc cooling water inlet path 7 and an inner arc cooling water outlet path 8, wherein an input end of the mold inner arc 5 is connected with the inner arc cooling water inlet path 7, an output end of the mold inner arc 5 is connected with the inner arc cooling water outlet path 8, the outer arc cooling water path includes an outer arc cooling water inlet path 9 and an outer arc cooling water outlet path 10, wherein an input end of the mold outer arc 6 is connected with the outer arc cooling water inlet path 9, an output end of the mold outer arc 6 is connected with the outer arc cooling water outlet path 10, the inner arc cooling water inlet path 7 and the outer arc cooling water, wherein the inner arc cooling water outlet path 8 and the outer arc cooling water outlet path 10 are respectively connected with a water treatment station.
As shown in fig. 3, preferably, the crystallizer cooling water PLC control module includes a PLC control center, a temperature transmitter, an electromagnetic flowmeter and a pneumatic control valve, wherein the temperature transmitter includes a first temperature transmitter 11, a second temperature transmitter 12 and a third temperature transmitter 13, wherein the electromagnetic flowmeter includes a first electromagnetic flowmeter 14 and a second electromagnetic flowmeter 15, wherein the pneumatic control valve includes a first pneumatic control valve 16 and a second pneumatic control valve 17, a first temperature transmitter 11, a first electromagnetic flowmeter 14 and a first pneumatic control valve 16 are sequentially disposed on a pipeline between the inner arc cooling water outlet path 8 and the water treatment station, wherein the first temperature transmitter 11, the first electromagnetic flowmeter 14 and the first pneumatic control valve 16 are respectively electrically connected to the PLC control center, and a second temperature transmitter 12, a second electromagnetic flowmeter 12, a third electromagnetic flowmeter and a pneumatic control valve 16 are sequentially disposed on a pipeline between the outer arc cooling water outlet path 10 and the water treatment station, Second electromagnetic flowmeter 15 and second pneumatic control valve 17, wherein second temperature transmitter 12, second electromagnetic flowmeter 15 and second pneumatic control valve 17 electricity respectively connect PLC control center, be equipped with third temperature transmitter 13 on the pipeline between inner arc cooling inlet channel 7 and outer arc cooling inlet channel 9 and the crystallizer total inlet channel, wherein third temperature transmitter 13 electricity is connected PLC control center, PLC control center is the singlechip, and wherein PLC control center connects crystallizer cooling water calculation module.
Preferably, the method for correcting the trapezoidal defect of the slab section in real time on line comprises the following steps:
step 1) measuring the width size of the outer arc of the cross section of a casting blank by a first infrared measuring device 1 arranged on the outer arc of a tail end fan-shaped section 19, measuring the width size of the inner arc of the cross section of the casting blank by a second infrared measuring device 2 arranged on the inner arc of the tail end fan-shaped section 19, and transmitting the detected data to a cooling water operation module of a crystallizer by the first infrared measuring device 1 and the second infrared measuring device 2;
and 2) calculating through a crystallizer cooling water operation module to judge whether the inner arc cooling water and the outer arc cooling water of the crystallizer 18 need to be corrected, and then correcting the inner arc cooling water and the outer arc cooling water of the crystallizer 18 through a crystallizer cooling water PLC control module.
Preferably, in the step 2), when the width difference of the inner arc and the outer arc of the cross section of the casting blank in the step 1) is less than 5mm and the temperature difference of the inlet water and the outlet water of the inner arc and the outer arc of the crystallizer 18 is less than 9 ℃, the cooling water of the inner arc and the outer arc of the crystallizer 18 is not changed, and normal production is continued;
preferably, in the step 2), when the width difference of the inner arc and the outer arc of the cross section of the casting blank in the step 1) is larger than 5mm and the temperature difference of inlet and outlet water of the inner arc and the outer arc of the crystallizer is lower than 9 ℃, the water amount to be increased of the inner arc or the outer arc of the crystallizer is calculated through a crystallizer cooling water operation module, and correction is performed through a crystallizer cooling water PLC control module so as to correct the temperature of the inner arc and the outer arc of the casting blank out of the crystallizer, thereby correcting the trapezoidal defect of the casting blank and ensuring the external dimensions of the inner arc and the outer arc.
Preferably, in the step 2), when the width difference of the inner arc and the outer arc of the cross section of the casting blank in the step 1) is more than 5mm and the temperature difference of the inlet water and the outlet water of the inner arc and the outer arc of the crystallizer 18 is higher than 9 ℃, stopping the machine for overhauling the crystallizer 18.
Preferably, the calculation formula of the crystallizer cooling water operation module is as follows:
in the formula:
k-coefficient of linear expansion in solid state of steel type of cast slab, m.K-1/2；
B, casting blank is discharged from the crystallizer, and the width dimension is mm;
d, average thickness of a blank shell in mm when the casting blank is discharged from the crystallizer;
namely: when in use
＞
Then, then
=
(ii) a When in use
＜
Then, then
=
。
Example 8
Step 1) measuring the width size of the outer arc of the cross section of a casting blank by a first infrared measuring device 1 arranged on the outer arc of a tail end fan-shaped section 19, measuring the width size of the inner arc of the cross section of the casting blank by a second infrared measuring device 2 arranged on the inner arc of the tail end fan-shaped section 19, and transmitting the detected data to a cooling water operation module of a crystallizer by the first infrared measuring device 1 and the second infrared measuring device 2; the high temperature characteristics, the characteristics of the production process and the process parameters of the J1 stainless steel produced by a certain factory in China are shown in tables 1 and 2.
| Steel grade | Linear expansion coefficient (900 ℃ C.) and 1300 ℃ C., 10 -6/(m·K) | The specific heat of the steel in the high-temperature solid state, J/kg/℃ | the density of the steel at high temperature, kg/m3 |
| J1 | 26 | 640 | 7200 |
TABLE 2 casting of J1 stainless Steel
| Crystallizer discharge The width of the mouth is such that, mm | blank drawing speed Degree, m- min | Inner and outer arcs of crystallizer Beginning to produce water amount l- min | When the casting blank is discharged from the crystallizer The average thickness of the blank shell of (a), mm | inner and outer arcs of casting blank The difference of the width dimension is that, mm |  |
 |
| 1600 | 1.0 | 3200 | 10 | 6mm | 7.5 | 6. 4 |
in the step 2), when the width size difference of the inner arc and the outer arc of the cross section of the casting blank in the step 1) is larger than 5mm (the width size difference of the inner arc and the outer arc of the casting blank in the embodiment is 6 mm), and the temperature difference of the inlet water and the outlet water of the inner arc and the outer arc of the crystallizer is lower than 9 ℃ (the temperature difference of the inlet water and the outlet water of the inner arc and the outer arc of the crystallizer in the embodiment is respectively 7.5 ℃ and 6.4 ℃), calculating the water quantity required to be increased by the inner arc or the outer arc of the crystallizer:
The utility model discloses a theory of operation is:
before the casting blank exits from the lower opening of the crystallizer, the external dimension of the casting blank is controlled by the external force of the cavity of the copper plate of the crystallizer and the hydrostatic pressure of molten steel, the widths of the inner arc and the outer arc are kept consistent with the dimension of the outlet of the crystallizer, but the shrinkage of the inner arc and the outer arc of the casting blank cooled to normal temperature is different due to the difference of the surface temperatures of the inner arc and the outer arc after the casting blank exits from the crystallizer caused by the difference of the cooling of the inner arc copper plate and the outer arc copper plate, so that the trapezoidal defect of the section of the casting blank is corrected by adjusting the temperature. The intelligent device system measures the width sizes of inner and outer arcs of the cross section of a casting blank through two infrared measuring devices arranged at the tail end outlet of the fan-shaped section, namely the outlet of the two cooling areas, and transmits the detected data to the crystallizer cooling water operation module, and after the module is subjected to comparison, calculation and optimization treatment, the inner and outer arc cooling water systems of the crystallizer are controlled in a real-time closed-loop mode through the crystallizer cooling water PLC control module to change the surface temperatures of the inner and outer arcs after the casting blank exits the crystallizer, so that the linear shrinkage of the casting blank in the subsequent cooling process is controlled, and the trapezoidal defect of the slab section caused by uneven cooling of the casting blank and the.
The utility model greatly reduces the problem of internal defects of the casting blank, improves the quality of the casting blank, improves the yield of the casting blank and the subsequent rolled material, and improves the economic benefit of enterprises; the utility model discloses a real-time automatic control crystallizer internal and external arc cooling water system of cooling water PLC control module, revise the temperature that the casting blank internal and external arc goes out the crystallizer from the source, it is fast, saved manpower and materials, improved the production efficiency and the quality of finished product casting blank greatly; the utility model discloses calculation method is quick reasonable, and data are reliable, can effectively adjust the inside and outside arc surface temperature behind the casting blank play crystallizer, has avoided follow-up off-line coping processing, greatly reduced the cost.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.
Claims (4)
1. The utility model provides an online intelligent device who revises trapezoidal defect of slab section in real time, includes crystallizer and fan-shaped section, and wherein the crystallizer sets up in fan-shaped section top, its characterized in that: still include infrared measuring device and crystallizer cooling water system, infrared measuring device includes first infrared measuring device and the infrared measuring device of second, and wherein first infrared measuring device sets up on terminal segmental outer arc, and wherein the infrared measuring device of second sets up on terminal segmental inner arc, crystallizer cooling water system includes crystallizer cooling water calculation module and crystallizer cooling water PLC control module, crystallizer cooling water calculation module is connected to first infrared measuring device and the infrared measuring device of second electricity respectively, and wherein crystallizer cooling water PLC control module is connected to crystallizer cooling water calculation module electricity, crystallizer cooling water PLC control module is used for controlling the cooling water yield of business turn over crystallizer inner and outer arc.
2. The intelligent device for online real-time correction of trapezoidal defects of slab sections according to claim 1, characterized in that: the first infrared measuring device and the second infrared measuring device are infrared distance measuring instruments, wherein the first infrared measuring device and the second infrared measuring device are arranged on the same vertical line, and the first infrared measuring device and the second infrared measuring device are used for measuring the width sizes of inner arcs and outer arcs of the casting blank.
3. The intelligent device for online real-time correction of trapezoidal defects of slab sections according to claim 1, characterized in that: the crystallizer comprises a crystallizer inner arc, a crystallizer outer arc and a crystallizer inner and outer arc cooling water system, wherein a casting blank is manufactured between the inner arc of the crystallizer and the outer arc of the crystallizer, the cooling water system for the inner arc and the outer arc of the crystallizer comprises an inner arc cooling water path and an outer arc cooling water path, wherein the inner arc cooling water path comprises an inner arc cooling water inlet path and an inner arc cooling water outlet path, wherein the inner arc input end of the crystallizer is connected with the inner arc cooling water inlet path, wherein the output end of the inner arc of the crystallizer is connected with an inner arc cooling water outlet channel, the outer arc cooling water channel comprises an outer arc cooling water inlet channel and an outer arc cooling water outlet channel, wherein the outer arc input end of the crystallizer is connected with an outer arc cooling water inlet channel, the outer arc output end of the crystallizer is connected with an outer arc cooling water outlet channel, the inner arc cooling water inlet path and the outer arc cooling water inlet path are respectively connected with a main water inlet pipeline of the crystallizer, and the inner arc cooling water outlet path and the outer arc cooling water outlet path are respectively connected with a water treatment station.
4. The intelligent device for online real-time correction of trapezoidal defects of slab sections according to claim 3, characterized in that: the crystallizer cooling water PLC control module comprises a PLC control center, a temperature transmitter, an electromagnetic flowmeter and a pneumatic regulating valve, wherein the temperature transmitter comprises a first temperature transmitter, a second temperature transmitter and a third temperature transmitter, the electromagnetic flowmeter comprises a first electromagnetic flowmeter and a second electromagnetic flowmeter, the pneumatic regulating valve comprises a first pneumatic regulating valve and a second pneumatic regulating valve, a first temperature transmitter, a first electromagnetic flowmeter and a first pneumatic regulating valve are sequentially arranged on a pipeline between an inner arc cooling water outlet channel and a water treatment station, the first temperature transmitter, the first electromagnetic flowmeter and the first pneumatic regulating valve are respectively and electrically connected with the PLC control center, a second temperature transmitter, a second electromagnetic flowmeter and a second pneumatic regulating valve are sequentially arranged on a pipeline between an outer arc cooling water outlet channel and the water treatment station, and the second temperature transmitter, the second electromagnetic flowmeter and the second pneumatic regulating valve are sequentially arranged on the pipeline between the outer arc cooling water outlet channel and the water treatment station, The second electromagnetic flow meter and the second pneumatic regulating valve are respectively and electrically connected with a PLC control center, a third temperature transmitter is arranged on a pipeline between the inner arc cooling water inlet pipeline and the crystallizer total water inlet pipeline, the third temperature transmitter is electrically connected with the PLC control center, the PLC control center is a single chip microcomputer, and the PLC control center is connected with the crystallizer cooling water operation module.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110369687A (en) * | 2019-08-02 | 2019-10-25 | 中国重型机械研究院股份公司 | A kind of intelligent apparatus and method of the online trapezoidal defect of slab section of amendment in real time |
| CN110369687B (en) * | 2019-08-02 | 2024-04-30 | 中国重型机械研究院股份公司 | Intelligent device and method for online real-time correction of trapezoidal defects of slab section |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369687A (en) * | 2019-08-02 | 2019-10-25 | 中国重型机械研究院股份公司 | A kind of intelligent apparatus and method of the online trapezoidal defect of slab section of amendment in real time |
| CN110369687B (en) * | 2019-08-02 | 2024-04-30 | 中国重型机械研究院股份公司 | Intelligent device and method for online real-time correction of trapezoidal defects of slab section |
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