Height limit detection system for molten steel transportation

Abstract

The utility model discloses a height limit detection system for molten steel transportation. The height limit detection system comprises a pulley, a heavy hammer, a steel rope, a height limit sensor, two side sensors and a control module, when the transport vehicle carries the molten steel tank to run on the first side sensor, the control module sends a low-speed operation command to the transport vehicle according to the electric signal; if the heavy hammer triggers a height limiting sensor signal, the control module sends a parking signal to the transport vehicle; and if the signal of the height limiting sensor is not triggered, the transport vehicle continues to run to the second side sensor, the side sensor sends a signal, and the control module sends an original speed recovery signal to the transport vehicle. In conclusion, when the molten steel tank is too high, pre-judgment can be conducted in advance through the height limiting sensor, and therefore collision between equipment and structures in a transportation span is avoided.

Description

Technical Field

[0001] The utility model relates to a detection system, in particular to a height-limited detection system for molten steel transportation. Background Art

[0002] The molten steel transport span is an important equipment for transporting molten steel in metallurgical plants. It is usually composed of a crane, a transport vehicle, a track, etc. Its main function is to transport high-temperature molten steel from the steelmaking furnace to the casting area or other processing areas.

[0003] In the related art, the layout of a metallurgical plant is usually compact, and the running tracks and working areas of the molten steel transport span are often intertwined or adjacent to other equipment and structures. During the operation of the molten steel transport span, the transport vehicle carries the molten steel tank filled with molten steel and moves along the track.

[0004] When the transport vehicle passes through the molten steel transport span, if the height of the molten steel tank exceeds the predetermined range, it may collide or scratch with the equipment or structures on both sides or above, causing damage to the equipment. In severe cases, it may even cause molten steel to overflow, posing a huge risk. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a height limit detection system for molten steel transportation, which can avoid collision with equipment and structures in the molten steel transportation span.

[0006] According to the first aspect of the utility model, a height limit detection system for molten steel transportation includes a weight device, one end of which is fixed on the molten steel transportation span, and the other end of the weight device can be vertically lifted and lowered relative to the molten steel transportation span; a height limit sensing device is provided on the side of the weight device; two side sensing devices are provided in sequence along the running direction of the track of the molten steel transportation span; the orthographic projection of the height limit sensing device on the track is located between the two side sensing devices; and a control module is also included, which is electrically connected to the height limit sensing device, the side sensing device and the transport vehicle, and controls the transport vehicle based on the signals of the side sensing device and the height limit sensing device.

[0007] A height limit detection system for molten steel transportation according to an embodiment of the utility model has at least the following beneficial effects:

[0008] When the transport vehicle carrying the molten steel tank passes the first side sensing device, the control module sends a low-speed operation command to the transport vehicle according to the electrical signal; if the weight device triggers the height-limiting sensing device signal, the control module sends a stop signal to the transport vehicle; if the height-limiting sensing device signal is not triggered, the transport vehicle continues to travel to the second side sensing device, the side sensing device sends a signal, and the control module sends a signal to restore the original speed to the transport vehicle. In summary, when the molten steel tank is too high, the height-limiting sensing device can be used to predict in advance, thereby avoiding collision with equipment and structures in the transport span.

[0009] According to some embodiments of the utility model, the weight device includes a pulley and a steel rope, one end of the steel rope is fixed to the upper part of the molten steel transport span, and the other end of the steel rope is connected to a weight through a pulley. The steel rope passes through the pulley to form a height-limiting steel rope. When the height of the molten steel tank exceeds the height-limiting steel rope, it will hit the steel rope, driving the weight to lift and triggering the height-limiting sensor signal.

[0010] According to some embodiments of the utility model, the weight device also includes a protection box, which is a rectangular shell. The protection box limits the horizontal displacement of the weight to prevent it from shaking left and right or front and back when touching the height limit steel rope and damaging the height limit sensing device or the weight from being thrown out and injuring people.

[0011] According to some embodiments of the utility model, a round hole is provided on the top of the rectangular shell for the steel rope to pass through, so as to facilitate pulling the steel rope into the protection box and fixing it to the weight.

[0012] According to some embodiments of the utility model, a viewing window is provided on one side of the rectangular shell along the top downward, so that the staff can observe the movement of the heavy hammer in the protection box.

[0013] According to some embodiments of the utility model, a movable door is provided at the bottom of the rectangular shell to facilitate maintenance and overhaul of the heavy hammer.

[0014] According to some embodiments of the utility model, the horizontal distance between the height-limiting sensing device and the side sensing device is 4.5-5.5 m, leaving a sufficient safety distance for the transport vehicle to slow down.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of a height limit detection system for molten steel transportation;

[0018] Figure 2 This is a flow chart of a height limit detection system for molten steel transportation;

[0019] Figure 3 This is a schematic diagram of the installation of the side sensor;

[0020] Figure 4 A schematic diagram of the structure of the protection box.

[0021] Figure numerals: 1. molten steel transport span; 2. pulley; 3. heavy hammer; 4. protection box; 5. height limit sensor; 6. side sensor; 7. steel rope; 41. window; 42. movable door. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] Reference Figure 1-3A height limit detection system for molten steel transportation includes a pulley 2, a weight 3, a steel rope 7, a height limit sensor 5, two side sensors 6 and a control module; wherein one end of the steel rope 7 is fixed on the molten steel transportation span 1, and the other end of the steel rope 7 is connected to the weight 3 after passing through the pulley 2. The steel rope 7 forms a height limit steel rope through the pulley 2. When the height of the molten steel tank exceeds the height limit steel rope, it will hit the steel rope, drive the weight 3 to rise, and trigger the height limit sensor 5 signal. The height limit sensor 5 is installed on the side of the weight 3 to detect whether the weight 3 is in place, and the two side sensors 6 are installed along the running direction of the track to detect whether the transport vehicle is in place. The control module is electrically connected to the height limit sensor 5, the side sensor 6 and the transport vehicle, and the control module controls the transport vehicle based on the signals of the height limit sensor 5 and the side sensor 6.

[0027] It should be noted that the height limit sensor 5 and the side sensor 6 are both emitters in the reflective photoelectric sensor, and the reflectors corresponding to the emitters are respectively installed on the weight 3 (or the protection box 4) and the transport vehicle. The height limit sensor 5 and the side sensor 6 emit a light beam, and when the weight 3 and the transport vehicle carry the corresponding reflector to the position where the light beam is emitted, the reflector reflects the light beam to the emitter and converts it into an electrical signal, and then the emitter sends the electrical signal to the control module, which uses it to determine whether it is in place.

[0028] When the transport vehicle carrying the molten steel tank passes the first side sensor 6, the control module sends a low-speed operation command to the transport vehicle according to the electrical signal; when the height of the molten steel tank exceeds the height limit rope, it will hit the rope, drive the weight 3 to rise, and trigger the height limit sensor 5 signal. If the weight 3 triggers the height limit sensor 5 signal, the control module sends a stop signal to the transport vehicle; if the height limit sensor 5 signal is not triggered, the transport vehicle continues to travel to the second side sensor 6, and the side sensor 6 sends a signal, and the control module sends a signal to restore the original speed to the transport vehicle. In summary, when the molten steel tank is too high, the height limit sensor 5 can be used to predict in advance, thereby avoiding collisions with equipment and structures in the transport span.

[0029] Reference Figure 4 In order to prevent the height limit steel rope 7 from shaking left and right or forward and backward and damaging the height limit sensing device or the heavy hammer 3 from being thrown out and injuring people when touching the height limit steel rope 7, a protection box 4 is also provided on the heavy hammer 3. The protection box 4 is a rectangular shell, and the horizontal displacement of the heavy hammer 3 is limited by the protection box 4.

[0030] Preferably, a round hole is provided on the top of the rectangular shell for the steel rope 7 to pass through, so as to facilitate pulling the steel rope 7 into the protection box 4 and fixing it to the weight 3.

[0031] In addition, a viewing window 41 is provided on one side of the rectangular shell along the top downward, so that the staff can observe the movement of the heavy hammer 3 in the protection box 4, and a movable door 42 is provided at the bottom of the rectangular shell to facilitate the maintenance and repair of the heavy hammer 3.

[0032] In this embodiment, the horizontal distance between the height limit sensor 5 and the side sensor 6 is 4.5-5.5 m, leaving a sufficient safety distance for the transport vehicle to slow down.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A height limit detection system for molten steel transportation, characterized in that: Including heavy hammer device, One end of the weight device is fixed on the molten steel transport span, and the other end of the weight device is suspended below the molten steel transport span; A height-limiting sensing device is provided on the side of the weight device; The track of the molten steel transport span is provided with two side sensing devices in sequence along the running direction; The orthographic projection of the height-limiting sensing device on the track is located between the two side sensing devices; It also includes a control module, which is electrically connected to the height-limiting sensing device, the side sensing device and the transport vehicle, and controls the transport vehicle based on signals from the side sensing device and the height-limiting sensing device.

2. The height limit detection system for molten steel transportation according to claim 1 is characterized in that: The weight device comprises a pulley and a steel rope, one end of the steel rope is fixed on the upper part of the molten steel transport span, and the other end of the steel rope is connected with a weight through the pulley.

3. The height limit detection system for molten steel transportation according to claim 2 is characterized in that: The weight device also includes a protection box, which is a rectangular shell, and the horizontal displacement of the weight is limited by the protection box.

4. The height limit detection system for molten steel transportation according to claim 3 is characterized in that: The top of the rectangular shell is provided with a round hole for the steel rope to pass through.

5. The height limit detection system for molten steel transportation according to claim 3 is characterized in that: A viewing window is provided on one side of the rectangular shell along the top downward.

6. The height limit detection system for molten steel transportation according to claim 3 is characterized in that: A movable door is arranged at the bottom of the rectangular shell.

7. The height limit detection system for molten steel transportation according to claim 1 is characterized in that: The horizontal distance between the height-limiting sensing device and the side sensing device is 4.5-5.5m.

Images