Intelligent detection device suitable for position of steel billet entering heating furnace

Abstract

The utility model discloses an intelligent detection device suitable for a heating furnace charging billet position, and relates to the technical field of heating furnace charging billets. A first laser range finder is installed on the side edge of the heating furnace inlet door opening and located on one side of the roller way, and a second laser range finder and a calibration cold detection structure are arranged on the other side of the roller way. The device has the advantages that the two laser range finders are additionally arranged on the edge of the roller way, accurate measurement of the position of a steel plate on the roller way is achieved, the laser range finders and the intelligent alarm and one-key calibration functions are reasonably utilized, accurate measurement of the position of the steel plate on the roller way is achieved, and a foundation is laid for automatic centering of the steel plate.

Description

Technical Field

[0001] The utility model relates to the technical field of steel billets entering a heating furnace, and in particular to an intelligent detection device for the position of steel billets entering a heating furnace. Background Art

[0002] The billet is transported from the hot delivery area to the heating furnace entrance through the furnace roller. The billet needs to be manually centered at the heating furnace entrance. The roller speed is reversed to ensure that the middle position of the billet is in the middle position of the furnace. After the centering is completed, the billet is moved horizontally and sent into the heating furnace. Manual centering has poor accuracy, uneven billet arrangement, and incomplete billet combustion, which affects product quality and causes energy waste. Utility Model Content

[0003] The purpose of the utility model is to provide an intelligent detection device for the position of steel billets entering a heating furnace in response to the shortcomings and defects in the prior art. By adding two laser rangefinders at the edge of the roller table, accurate measurement of the position of the steel plate on the roller table is achieved. The laser rangefinder, intelligent alarm and one-key calibration functions are reasonably utilized to achieve accurate measurement of the position of the steel plate on the roller table, laying the foundation for automatic centering of the steel plate.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an intelligent detection device for the position of steel billets entering a heating furnace, comprising a heating furnace 1 and a roller table 3. The roller table 3 is provided at the furnace door of the heating furnace 1, and is characterized in that a first laser rangefinder 2 is installed at the side of the furnace door of the heating furnace 1, and the first laser rangefinder 2 is located on one side of the roller table 3, and a second laser rangefinder 4 and a calibration cold detection structure 5 are provided on the other side of the roller table 3.

[0005] Furthermore, the heating furnace 1 is provided with a first furnace inlet 101 and a second furnace inlet 102 for processing steel billets.

[0006] Furthermore, two first laser rangefinders 2 are provided, and are respectively arranged on one side of the first furnace entrance passage 101 and the second furnace entrance passage 102 .

[0007] Furthermore, the second laser rangefinder 4 is installed directly opposite to the first laser rangefinder 2, and the spacing between the first laser rangefinder 2, the second laser rangefinder 4 and the roller 3 is 50CM, and the distance from the edge of the wall of the heating furnace 1 is 90CM.

[0008] Furthermore, at least two calibration cold inspection structures 5 are provided, and are arranged at the side of the furnace entrance operation table of the heating furnace 1 100 cm away from the edge of the roller 3 and 130 cm away from the second laser rangefinder 4 in a horizontal distance.

[0009] Furthermore, the first laser rangefinder 2 and the second laser rangefinder 4 are both provided with protection devices.

[0010] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by adding two laser rangefinders at the edge of the roller table, accurate measurement of the position of the steel plate on the roller table is achieved, and the laser rangefinder, intelligent alarm and one-key calibration functions are reasonably utilized to achieve accurate measurement of the position of the steel plate on the roller table, paving the way for automatic centering of the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 yes Figure 1 Schematic diagram of the enlarged size structure at A in the middle.

[0014] Figure 3 It is a screen diagram of WINCC in the utility model.

[0015] Explanation of the reference numerals: heating furnace 1 , first laser rangefinder 2 , roller table 3 , second laser rangefinder 4 , calibration cold inspection structure 5 , first furnace entrance channel 101 , second furnace entrance channel 102 . DETAILED DESCRIPTION

[0016] See also Figure 1-Figure 3 As shown, the technical solution adopted in this specific embodiment is: it includes a heating furnace 1 and a roller 3, and the roller 3 is provided at the furnace entrance of the heating furnace 1, and is characterized in that: a first laser rangefinder 2 is installed on the side of the furnace entrance of the heating furnace 1, and the first laser rangefinder 2 is located on one side of the roller 3, and a second laser rangefinder 4 and a calibration cold inspection structure 5 are provided on the other side of the roller 3.

[0017] As a more specific description of the present invention, the heating furnace 1 is provided with a first furnace entrance 101 and a second furnace entrance 102 for processing steel billets.

[0018] As a more specific description of the present invention, two first laser range finders 2 are provided, and are respectively arranged on one side of the first furnace entrance 101 and the second furnace entrance 102. The two first laser range finders 2 can obtain the steel billets on both sides in real time.

[0019] As a more specific description of the present invention, the second laser rangefinder 4 is installed directly opposite to the first laser rangefinder 2, and the spacing between the first laser rangefinder 2, the second laser rangefinder 4 and the roller 3 is 50CM, and the distance from the edge of the wall of the heating furnace 1 is 90CM.

[0020] As a more specific description of the present invention, at least two calibration cold inspection structures 5 are provided, and are arranged at the side of the furnace entrance operation table of the heating furnace 1 100 cm away from the edge of the roller 3 and 130 cm away from the second laser rangefinder 4 in a horizontal distance.

[0021] As a more specific description of the present invention, both the first laser rangefinder 2 and the second laser rangefinder 4 are provided with a protective device. The protective device can better protect the laser rangefinder, thereby extending the service life and safety of the laser rangefinder.

[0022] The working principle of the utility model is as follows: two sets of first laser rangefinders 2 with protective devices are installed on both sides of the roller 3 on one side of each furnace entrance of the heating furnace 1. The first laser rangefinder 2 is installed at a distance of 50 cm from the edge of the roller 3 and 90 cm from the wall of the heating furnace 1. At this time, the angle formed by the first laser rangefinder 2 and the vertical line of the roller 3 is ∠1. The second laser rangefinder 4 is installed directly opposite to the first laser rangefinder 2. At the same time, the second laser rangefinder 4 is 50 cm away from the edge of the roller. At this time, the angle formed by the second laser rangefinder 4 and the vertical line of the roller 3 is ∠2. It is 100 cm away from the edge of the roller 3 on the side of the operation table of the furnace entrance of the heating furnace 1. A calibration cold inspection structure 5 is installed at a horizontal distance of 130 cm from the second laser rangefinder 4. The steel billet is transported manually until the calibration cold inspection structure 5 just detects the end of the steel billet. At this time, the PLC reads the values ​​of the first laser rangefinder 2 and the second laser rangefinder 4, and obtains the value of sin∠1 through the formula 1300 / laser rangefinder on the heating furnace side; the value of sin∠2 is obtained through the formula 1300 / laser rangefinder on the operating side. The PLC records the values ​​of sin∠1 and sin∠2 and stores them in the DB block of the PLC. During the actual transportation of the steel billet, the PLC reads the values ​​of the first laser rangefinder 2 and the second laser rangefinder 4 in real time. , and calculate the value of the first laser rangefinder 2 * the value of sin∠1 to obtain the horizontal position 1 of the steel billet; calculate the value of the second laser rangefinder 4 * the value of sin∠2 to obtain the horizontal position 2 of the steel billet; compare the values ​​of horizontal position 1 and horizontal position 2 in real time, if the absolute value of the difference between the two is >3cm, an intelligent alarm "the laser rangefinder needs to be calibrated" is issued, and the communication between PLC and WICC is established, and the cold detection signal, the value of the first laser rangefinder 2, the value of sin∠1, the horizontal position 1, the value of the laser rangefinder on the operating side, the value of sin∠2, the horizontal position 2 and the horizontal position 1 and the horizontal position 2 are displayed in real time on the screen The absolute value of the difference is indicated by the alarm text, and a one-key calibration button is set on the screen. When the billet is manually transported and the calibration cold inspection just detects the end of the billet, press the one-key calibration button, and the PLC automatically completes the manual transportation of the billet until the calibration cold inspection structure 5 just detects the end of the billet. At this time, the PLC reads the values ​​of the first laser rangefinder 2 and the second laser rangefinder 4, and obtains the value of sin∠1 through formula 1300 / heating furnace side laser rangefinder; obtains the value of sin∠2 through formula 1300 / operation side laser rangefinder, and the PLC records the values ​​of sin∠1 and sin∠2 and stores them in the DB block of the PLC.

[0023] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. An intelligent detection device for the position of billets entering a heating furnace, characterized in that: It comprises a heating furnace (1) and a roller conveyor (3), wherein a roller conveyor (3) is provided at the furnace entrance of the heating furnace (1), and is characterized in that a first laser rangefinder (2) is installed at the side of the furnace entrance of the heating furnace (1), and the first laser rangefinder (2) is located on one side of the roller conveyor (3), and a second laser rangefinder (4) and a calibration cold detection structure (5) are provided on the other side of the roller conveyor (3).

2. The intelligent detection device for the position of billets entering a heating furnace according to claim 1 is characterized in that: The heating furnace (1) is provided with a first furnace inlet channel (101) and a second furnace inlet channel (102) for processing steel billets.

3. The intelligent detection device for the position of steel billets entering a heating furnace according to claim 1 is characterized in that: Two of the first laser rangefinders (2) are provided, and are arranged on one side of the first furnace entrance passage (101) and the second furnace entrance passage (102), respectively.

4. The intelligent detection device for the position of steel billets entering a heating furnace according to claim 1 is characterized in that: The second laser rangefinder (4) is installed directly opposite to the first laser rangefinder (2), and the spacing between the first laser rangefinder (2), the second laser rangefinder (4) and the roller table (3) is 50 cm, and the distance from the edge of the wall of the heating furnace (1) is 90 cm.

5. The intelligent detection device for the position of steel billets entering a heating furnace according to claim 1 is characterized in that: At least two calibration cold inspection structures (5) are provided and are arranged on the side of the furnace entrance operation table of the heating furnace (1), 100 cm away from the edge of the roller conveyor (3), and at a horizontal distance of 130 cm from the second laser rangefinder (4).

6. The intelligent detection device for the position of steel billets entering a heating furnace according to claim 1 is characterized in that: The first laser rangefinder (2) and the second laser rangefinder (4) are both provided with protection devices.

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