CN-121972522-A - Real-time monitoring system for falling state of steel scraps of flying shear diversion trenches of hot rolling production line

CN121972522ACN 121972522 ACN121972522 ACN 121972522ACN-121972522-A

Abstract

The invention relates to a real-time monitoring system for the falling state of steel scraps in a flying shear guide slot of a hot rolling production line, which belongs to the technical field of monitoring in a ferrous metallurgy hot rolling production process and comprises a laser radar sensor, an infrared thermal imaging sensor, a vibration displacement sensor and a data processing and analyzing module, wherein the laser radar sensor is used for scanning the stacking height of steel scraps in the flying shear guide slot in real time, the infrared thermal imaging sensor is used for monitoring whether steel scraps fall from a discharge hole of the flying shear guide slot, the vibration displacement sensor is used for acquiring the vibration frequency of the flying shear guide slot, and the data processing and analyzing module is used for judging whether the flying shear guide slot is abnormal according to the stacking height of steel scraps, the falling condition of the discharge hole and the vibration frequency. According to the invention, the laser radar sensor, the infrared thermal imaging sensor and the vibration displacement sensor are used for monitoring the steel scrap state of the flying shear diversion trench in real time, so that the steel scrap stacking height, the steel scrap dropping condition and the vibration frequency of the diversion trench can be detected in real time, and the timely discovery of problems in the production process is ensured.

Inventors

WANG CHUNSHENG
LIU DONGSHENG
WEI YINGYING
ZHANG JIANJUN
WANG HUAN
ZUO PENG
TAN SIYU
FAN XIN

Assignees

内蒙古包钢钢联股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260316

Claims (6)

1. Real-time monitoring system of hot rolling production line flying shear guiding gutter steel scrap state that drops, its characterized in that includes: the laser radar sensor is used for scanning the steel scrap stacking height in the flying shear diversion trench in real time; the infrared thermal imaging sensor is used for monitoring whether the scrap steel falls from a discharge hole of the flying shear diversion trench; The vibration displacement sensor is used for collecting the vibration frequency of the diversion trench of the flying shear; And the data processing and analyzing module is used for judging whether the flying shear diversion trench is abnormal according to the stacking height of the scrap steel, the falling condition of the discharge hole and the vibration frequency.
2. The real-time monitoring system for the steel scrap dropping state of the flying shear diversion trench of the hot rolling production line according to claim 1, wherein the laser radar sensor is fixed at intervals of 2m along the inner side of the top cover plate of the flying shear diversion trench, 4 stations are added, the scanning angle is adjusted to 45 degrees, and the scanning range is ensured to cover the whole cross section of the flying shear diversion trench.
3. The real-time monitoring system for the falling state of steel scraps in a flying shear diversion trench of a hot rolling production line according to claim 2, wherein the infrared thermal imaging sensor is installed at a position 1.5m right above a discharge hole of the flying shear diversion trench through a high-temperature-resistant bracket, a lens faces to a steel scraps collecting device below the discharge hole, and the full caliber of the discharge hole is covered by a visual field range.
4. The real-time monitoring system for the falling state of steel scraps in a flying shear diversion trench of a hot rolling production line according to claim 3, wherein the vibration displacement sensor is installed on a supporting beam at the bottom of the flying shear diversion trench in a magnetic attraction manner.
5. The real-time monitoring system for the falling state of scrap steel in a flying shear diversion trench of a hot rolling production line according to claim 4, wherein in the data processing and analyzing module, the blocking is judged when the stacking height is more than or equal to 300mm, the non-scrap steel thermal imaging track of a continuous 5s discharge hole is judged to be blocked, and the vibration frequency is more than or equal to 15Hz is judged to be abnormal vibration.
6. The real-time monitoring system for the falling state of steel scraps in a flying shear diversion trench of a hot rolling production line according to claim 5, further comprising: The abnormal early warning and linkage module triggers a three-level response mechanism when the data processing module judges that the state of the scrap steel is abnormal, wherein the first-level early warning is that sound and light alarms are sent out when the stacking height of the scrap steel is more than or equal to 250mm, the second-level early warning is that sound and light alarms are sent out when the stacking height of the scrap steel is more than or equal to 250mm, early warning is that the blocking or blocking is judged, early warning information is automatically pushed to a mobile phone of a patrol personnel, meanwhile, flying shear cutting action is suspended, if the abnormal state continues for more than 5 minutes, a standby blowing device at the bottom of a guide groove is automatically started to blow the blocked scrap steel, and if the blocked scrap steel is not recovered after blowing, equipment maintenance work order generation is triggered and synchronously pushed to a maintenance department.

Description

Real-time monitoring system for falling state of steel scraps of flying shear diversion trenches of hot rolling production line Technical Field The invention relates to the technical field of monitoring of ferrous metallurgy hot rolling production processes, in particular to a real-time monitoring system for a falling state of scrap steel of a flying shear diversion trench of a hot rolling production line. Background In the production flow of a hot rolling 2250mm production line, flying shears are used as key equipment, shearing treatment is required to be carried out on the head part, the tail part and the middle defect section of strip steel, and scrap steel produced by shearing is required to be conveyed to a scrap steel collecting device below through a diversion trench. The current monitoring mode for the falling state of the scrap steel of the diversion trench of the flying shears has obvious technical shortboards, and the specific pain points are as follows: The monitoring mode is lag, and the manual inspection is relied on, so that the prior art has no special monitoring device, and mainly relies on inspection personnel to check the accumulation and dropping conditions of the waste steel of the diversion trench on site every 1-2 hours. Because the flying shear area has severe environment (the temperature is up to 80-120 ℃, the dust concentration is high, the mechanical noise is large), and the problem that scrap steel is blocked and falls cannot be found in real time due to the fact that visual field blind areas (such as the corner and bottom connection positions of a diversion trench) exist in manual inspection. If the steel scraps are blocked in the diversion trenches and not cleaned in time, the steel scraps are likely to be accumulated and overflowed, and fall onto equipment such as a lower roller way, a transmission gear and the like, thereby causing equipment blocking, gear abrasion and even roller way blocking faults. According to industry statistics, such faults occur on average 1-2 times per month, directly resulting in yield losses of about 200 tons/time. Meanwhile, the maintenance time of single shutdown is as long as 4-6 hours, and the maintenance cost of equipment is increased (the annual average maintenance cost is more than 15 ten thousand yuan). The traditional monitoring technology has poor suitability, part of enterprises try to adopt a common camera to carry out visual monitoring, but high-temperature radiation in a flying shear area can lead to atomization of the camera lens and failure of a sensor, dust shielding can cause image blurring, the monitoring accuracy is less than 60 percent, and the scheme of monitoring by adopting a vibration sensor can not distinguish 'normal conveying vibration of scrap steel' and 'blocking vibration of scrap steel', and the false alarm rate is up to 30 percent, so that the actual production requirement is difficult to meet. The problems cause potential safety hazards of equipment, poor production continuity and high labor and maintenance cost in the flying shear area of the hot rolling 2250mm production line, and an urgent need exists for a technical scheme for monitoring the dropping state of the scrap steel, which has high adaptability, high accuracy and real-time performance. Disclosure of Invention In order to solve the problems, the embodiment of the invention aims to provide a real-time monitoring system for the falling state of steel scraps in a flying shear diversion trench of a hot rolling production line. Real-time monitoring system of hot rolling production line flying shear guiding gutter steel scrap state that drops includes: the laser radar sensor is used for scanning the steel scrap stacking height in the flying shear diversion trench in real time; the infrared thermal imaging sensor is used for monitoring whether the scrap steel falls from a discharge hole of the flying shear diversion trench; The vibration displacement sensor is used for collecting the vibration frequency of the diversion trench of the flying shear; And the data processing and analyzing module is used for judging whether the flying shear diversion trench is abnormal according to the stacking height of the scrap steel, the falling condition of the discharge hole and the vibration frequency. Preferably, the laser radar sensor is fixed 1 station every 2m along the inner side of the cover plate at the top of the flying shear diversion trench, 4 stations are all arranged, the scanning angle is adjusted to 45 degrees, and the scanning range is ensured to cover the whole cross section of the flying shear diversion trench. Preferably, the infrared thermal imaging sensor is arranged at a position which is 1.5m right above the discharge port of the flying shear diversion trench through the high-temperature resistant bracket, the lens faces the scrap steel collecting device below the discharge port, and the full caliber of the discharge port is covered by the visual field r