Accurate positioning device for steelmaking crown block

Abstract

The utility model discloses an accurate positioning device for a steelmaking crown block, which belongs to the technical field of crown block positioning, and comprises a furnace front crown block, a furnace rear crown block, an ultrasonic positioning component and a ground data acquisition gateway, the ultrasonic positioning component comprises an ultrasonic transmitter, an ultrasonic receiver, a controller, an upper computer, a wireless transmitting module and a wireless receiving module, the furnace front crown block and the furnace rear crown block are each provided with an ultrasonic transmitter, the ultrasonic transmitters and the wireless receiving modules are both in signal connection with the second controller, three ultrasonic receivers are arranged on the crown block track at intervals, the ultrasonic receivers and the wireless transmitting modules are both in signal connection with the first controller, and the first controller is in signal connection with the upper computer. The upper computer is in signal connection with the ground data acquisition gateway, and the wireless transmitting module is in wireless signal connection with the wireless receiving module. According to the utility model, the crown blocks in front of and behind the steel-making furnace can be accurately positioned, and the position information and weight information of the steel-making crown blocks can be transmitted to the ground data acquisition gateway, so that the circulation management conditions of the ladle in front of the steel-making furnace and the steel ladle behind the steel-making furnace can be obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of overhead crane positioning, in particular to an accurate positioning device for a steelmaking overhead crane. Background Art

[0002] In existing steel mills, there is no moving position information for the overhead cranes in front of and behind the furnace, and the weight data of the ladle lifted by the overhead crane cannot be transmitted to the ground either. When carrying out the production data acquisition and management platform project, due to the lack of key data information on the positioning of the steelmaking overhead crane and the weight of the ladle lifted by the overhead crane, the furnace number cannot be automatically generated and can only rely on manual matching; there is no signal for the ladle to leave the station after argon blowing, and the data and signals related to the post-furnace steel tapping cannot be automatically collected. The MES system of the steelmaking converter fails to truly play its role. The production consumption and output index data such as the metal yield rate per furnace cannot be automatically calculated. Relying on manual calculation of the output for 12 hours or 24 hours during a shift has inaccurate situations such as the need for rebalancing and being prone to errors, which is not conducive to accurate accounting; in the refining, VD, and continuous casting links, the key signal signs for arriving at and leaving the station are subject to the lack of positioning and weight information of the post-furnace overhead crane, and only manual triggering of the start and stop signal signs is possible, which affects the in-depth development and operation of the MES system; in terms of automation, the inability to automatically trigger the signal signs will increase the operation burden of production operators. If the MES is not easy to use, it cannot be used effectively, resulting in the MES system in the refining, VD, and continuous casting links having little effect. It fails to truly achieve the intention and goal of using information technology means to improve management by the MES system. The operation burden of production operators cannot be reduced, and the calculation of costs and benefits still relies on manual calculation or general calculation. Production management is still in a relatively extensive category, and there is still a very large room for improvement. The road to improving production control level is long and arduous. Therefore, it is imperative to use data acquisition technology to collect key data such as overhead crane position information and overhead crane ladle weight data, which are difficult to achieve through OPC communication, serial communication, etc. Content of the Utility Model

[0003] In view of this, the utility model provides an accurate positioning device for a steelmaking overhead crane in view of the deficiencies of the prior art.

[0004] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: A steelmaking overhead crane accurate positioning device, including a pre-furnace overhead crane, a post-furnace overhead crane, an ultrasonic positioning component, and a ground data acquisition gateway. The ultrasonic positioning component includes an ultrasonic transmitter, an ultrasonic receiver, a controller, a host computer, a wireless transmission module, and a wireless reception module. The ultrasonic transmitters are arranged on both the pre-furnace overhead crane and the post-furnace overhead crane. The ultrasonic transmitter and the wireless reception module are both signal-connected to a second controller. Three ultrasonic receivers are arranged at intervals on the overhead crane track. The ultrasonic receiver and the wireless transmission module are both signal-connected to a first controller. The first controller is signal-connected to the host computer. The host computer is signal-connected to the ground data acquisition gateway. The wireless transmission module is wirelessly signal-connected to the wireless reception module.

[0005] Further, the host computer is signal-connected to the ground data acquisition gateway by means of Ethernet or serial communication.

[0006] Further, weighing sensors are arranged on both the pre-furnace overhead crane and the post-furnace overhead crane. The weighing sensors are signal-connected to the ground data acquisition gateway by means of serial communication.

[0007] Further, the number of pre-furnace overhead cranes is five, and the number of post-furnace overhead cranes is seven.

[0008] Further, the ultrasonic transmitter, the second controller, and the wireless reception module are arranged on each of the pre-furnace overhead crane and the post-furnace overhead crane.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] The steelmaking overhead crane accurate positioning device of the present utility model can realize the accurate positioning of the pre-furnace overhead crane and the post-furnace overhead crane by arranging ultrasonic transmitters on the pre-furnace overhead crane and the post-furnace overhead crane and three ultrasonic receivers on the overhead crane track, and the three ultrasonic receivers are signal-connected to the host computer through the first controller. The host computer and the weighing sensors are both signal-connected to the ground data acquisition gateway, so as to obtain the transfer management situation of the molten iron ladle in front of the steelmaking furnace and the molten steel ladle behind the steelmaking furnace. The furnace number is synthesized by the serial numbers generated during the transfer of the molten iron ladle and the molten steel ladle, and the actual process data, equipment operation status, energy data, power saving and consumption reduction data, etc. of the molten steel production related process of the current furnace steel throughout the whole process of steelmaking-refining-VD-continuous casting are penetrated by the furnace number, truly realizing the improvement of production management level and dispatching level through information means. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0012] In the figure: 1 - Front - furnace overhead crane, 2 - Rear - furnace overhead crane, 3 - Ground data acquisition gateway, 4 - Ultrasonic transmitter, 5 - Ultrasonic receiver, 6 - Host computer, 7 - Wireless transmission module, 8 - Wireless reception module, 9 - Second controller, 10 - Overhead crane track, 11 - First controller, 12 - Weighing sensor. Specific implementation mode

[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.

[0014] Embodiment: As Figure 1 shown, a steel - making overhead crane accurate positioning device includes a front - furnace overhead crane 1, a rear - furnace overhead crane 2, an ultrasonic positioning component, and a ground data acquisition gateway 3. The ultrasonic positioning component includes an ultrasonic transmitter 4, an ultrasonic receiver 5, a controller, a host computer 6, a wireless transmission module 7, and a wireless reception module 8. The ultrasonic transmitter 4 is provided on both the front - furnace overhead crane 1 and the rear - furnace overhead crane 2. The ultrasonic transmitter 4 and the wireless reception module 7 are both signal - connected to the second controller 9. Three ultrasonic receivers 5 are arranged at intervals on the overhead crane track 10. The ultrasonic receiver 5 and the wireless transmission module 7 are both signal - connected to the first controller 11. The first controller 11 is signal - connected to the host computer 6. The host computer 6 is signal - connected to the ground data acquisition gateway 3, and the wireless transmission module 7 is wirelessly signal - connected to the wireless reception module 8.

[0015] The host computer 6 is signal - connected to the ground data acquisition gateway 3 in a serial communication manner.

[0016] Weighing sensors 12 are provided on both the front - furnace overhead crane 1 and the rear - furnace overhead crane 2. The weighing sensors 12 are signal - connected to the ground data acquisition gateway 3 in a serial communication manner.

[0017] The number of the front - furnace overhead cranes 1 is five. From east to west (the front - furnace span is 200 meters), they are in sequence: the 20T lifting - weight - block overhead crane, the 175T front - furnace 1#, the 175T front - furnace 2#, the 25T + 25T scrap - steel 1#, and the 25T + 25T scrap - steel 2#; the number of the rear - furnace overhead cranes 2 is seven. From east to west (the rear - furnace span is 381 meters), they are in sequence: the 180T rear - furnace 1#, the 180T rear - furnace 2#, the 175T rear - furnace 3#, the 175T rear - furnace 4#, the 175T rear - furnace 5#, the 130T rear - furnace, and the 100T rear - furnace;

[0018] On each of the front-of-furnace overhead cranes 1 and the rear-of-furnace overhead cranes 2, an ultrasonic transmitter 4, a second controller 9 and a wireless receiving module 7 are provided, ensuring stable and fast signal transmission.

[0019] The steelmaking overhead crane accurate positioning device in the embodiment of the present utility model can transmit the overhead crane position information and the overhead crane ladle weight data from the moving overhead crane to the data acquisition gateway on the ground. Then, the gateway forwards them to the real-time database and the transfer and storage relational database, enabling unified management and utilization of the key data of the front-of-furnace and rear-of-furnace overhead cranes in the steelmaking furnace, effectively promoting the improvement of production management by means of informatization and achieving cost reduction and efficiency increase.

[0020] The above is the preferred implementation mode of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle described in the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. An accurate positioning device for a steelmaking overhead crane, characterized in that: It includes a furnace front crane, a furnace rear crane, an ultrasonic positioning component and a ground data acquisition gateway. The ultrasonic positioning component includes an ultrasonic transmitter, an ultrasonic receiver, a controller, a host computer, a wireless transmitting module and a wireless receiving module. The ultrasonic transmitter is arranged on the furnace front crane and the furnace rear crane. The ultrasonic transmitter and the wireless receiving module are both connected to the second controller signal. Three ultrasonic receivers are arranged at intervals on the crane track. The ultrasonic receiver and the wireless transmitting module are both connected to the first controller signal. The first controller is connected to the host computer signal. The host computer is connected to the ground data acquisition gateway signal. The wireless transmitting module is connected to the wireless receiving module through wireless signals.

2. The accurate positioning device for steelmaking overhead crane according to claim 1 is characterized in that: The host computer is connected to the ground data acquisition gateway signal by Ethernet or serial communication.

3. The accurate positioning device for steelmaking overhead crane according to claim 1 is characterized in that: Weighing sensors are arranged on the overhead crane in front of the furnace and the overhead crane behind the furnace, and the weighing sensors are connected with the ground data acquisition gateway signal by serial communication.

4. The accurate positioning device for steelmaking overhead crane according to claim 1 is characterized in that: The number of the overhead cranes in front of the furnace is five, and the number of the overhead cranes behind the furnace is seven.

5. The accurate positioning device for steelmaking overhead crane according to claim 4 is characterized in that: The ultrasonic transmitter, the second controller and the wireless receiving module are each provided on the front crane and the rear crane.

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