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CN-117960805-B - Conveying method and system for hot blank feeding

CN117960805BCN 117960805 BCN117960805 BCN 117960805BCN-117960805-B

Abstract

The invention discloses a hot-feeding billet conveying method, relates to the field of steel production, and solves the technical problem that the existing billet conveying technology can cause damage to hot-feeding related equipment and billets. The method comprises the steps of obtaining the speed of entering the steel billet into a rolling mill, obtaining the conveying speed of the steel billet in the hot-blast pusher, linking the conveying speed of the steel billet into the rolling mill and the conveying speed of the steel billet in the hot-blast pusher with the speed of a roller way on a steelmaking side, obtaining the real-time position of the steel billet on the hot-blast pusher and the real-time position of the steel billet on the steelmaking side, and adjusting the speed of the hot-blast pusher through the real-time position of the steel billet on the hot-blast pusher and the real-time position of the steel billet on the steelmaking side. The invention also discloses a conveying system for hot blank conveying. The invention can reduce the fault rate of the blockage of the billet entering the heating furnace, improve the hot delivery rate of the billet, reduce the energy consumption and reduce the spare part cost of hot delivery related equipment.

Inventors

  • Zhu Chunshao
  • ZHU GUOJUN

Assignees

  • 阳春新钢铁有限责任公司

Dates

Publication Date
20260505
Application Date
20240227

Claims (5)

  1. 1. A method for conveying hot blanks is characterized in that the method comprises the following steps, Acquiring the speed of the billet entering a rolling mill; Acquiring the conveying speed of a steel billet in the hot-feed pusher; according to the speed of entering the billet into the rolling mill and the conveying speed of the billet in the hot-feed pusher, the billet is linked with the speed of a roller way at the steelmaking side; acquiring the real-time position of the steel billet on the hot-feed pusher and the real-time position of the steel billet on the steelmaking side; The speed of the hot-blast pusher is adjusted through the real-time position of the steel billet on the hot-blast pusher and the real-time position of the steel billet on the steelmaking side, so that a set safety distance is kept between the steel billets on the steel rolling side and the steelmaking side; the roller speed on the steelmaking side is determined by, ; Wherein V2 is the roller way speed of the steelmaking side, V0 is the speed of entering the rolling mill of the steel billet, and V1 is the conveying speed of the steel billet in the hot-blast pusher; The speed of the hot pusher is determined by, ; Wherein V3 is the speed of the hot-blast pusher, V2 is the roller way speed of the steelmaking side, and V1 is the conveying speed of the steel billet in the hot-blast pusher; Setting a speed detection point on the hot-blast pusher, and reducing the speed of a roller way on the steelmaking side when the real-time position of the steel billet on the hot-blast pusher reaches the speed detection point and the steel billet is on the roller way on the steelmaking side, so that the speed of the hot-blast pusher is reduced, and a set safety distance is kept between the steel billets on the steel rolling side and the steelmaking side.
  2. 2. The method according to claim 1, wherein the speed of the billet entering the rolling mill is increased, the speed of the steel-making side roller way is increased, the speed of the billet entering the rolling mill is decreased, and the speed of the steel-making side roller way is decreased.
  3. 3. The method according to claim 1, wherein the speed of entering the rolling mill and the speed of transporting the billet in the hot-blast pusher are obtained by speed sensors.
  4. 4. The method according to claim 1, wherein the real-time position of the billet on the hot-blast pusher is obtained by a displacement sensor and a hot metal detection sensor.
  5. 5. A hot-blast pusher drive module and a billet identification module, wherein the controller controls the hot-blast pusher drive module and the billet identification module to deliver billets by using the delivery method according to any one of claims 1 to 4.

Description

Conveying method and system for hot blank feeding Technical Field The invention relates to the field of steel production, in particular to a hot blank conveying method and a hot blank conveying system. Background The steel billet fed into the heating furnace of the steel mill mainly comprises hot billet feeding and cold billet feeding, wherein the hot billet feeding is transmitted from a steelmaking side through a hot billet feeding roller way, and the hot billet feeding rate of the hot billet feeding roller way directly relates to energy consumption, so that the improvement of the hot billet feeding rate is very important for reducing the energy consumption and realizing green development, but the prior art mainly comprises the step of transmitting the hot billet feeding from the hot billet feeding roller way of the steelmaking side to the hot billet feeding roller way of the steel rolling side according to the production rhythm. In this way, there are great drawbacks and defects, and the first aspect is that the steelmaking side transfers the hot-feed billet from the hot-feed roller table on the steelmaking side to the hot-feed roller table on the steel rolling side according to the production rhythm, if the hot-feed pusher on the steel rolling side is in the front or middle position, the billet can be caused to directly strike the hot-feed pusher, and further the hot-feed pusher is caused to be damaged, so that the hot-feed is interrupted, the hot-feed rate can be reduced, the energy consumption can be increased, and the cost of spare parts can be increased. The second aspect is that the steel-making side transfers the hot-feed steel billet from the hot-feed roller way of the steel-making side to the hot-feed roller way of the steel-rolling side according to the production rhythm, if the steel billet is arranged on the hot-feed roller way of the steel-rolling side, the hot-feed steel billet can impact the hot-feed steel billet, the steel billet is bent, the steel billet is further blocked in the process of feeding the steel billet into the heating furnace, the equipment failure can be caused, the hot-feed is interrupted, the hot-feed rate can be reduced, the energy consumption can be increased, and the spare part cost can be increased. The third aspect is that the steel-making side transmits the hot-feed billet from the hot-feed roller way on the steel-making side to the hot-feed roller way on the steel-rolling side according to the production rhythm, when the roller way on the steel-rolling side is not rotated yet, overload and overlarge vibration of the hot-feed roller way on the steel-making side can be caused, so that equipment is damaged, and further spare part cost is wasted and the hot-feed rate is reduced. Disclosure of Invention The invention aims to solve the technical problems of heat transfer related equipment and steel billet damage caused by the existing steel billet transfer technology. The invention relates to a method for conveying hot blank feeding, which comprises the following steps of, Acquiring the speed of the billet entering a rolling mill; Acquiring the conveying speed of a steel billet in the hot-feed pusher; according to the speed of entering the billet into the rolling mill and the conveying speed of the billet in the hot-feed pusher, the billet is linked with the speed of a roller way at the steelmaking side; acquiring the real-time position of the steel billet on the hot-feed pusher and the real-time position of the steel billet on the steelmaking side; The speed of the hot-blast pusher is regulated by the real-time position of the steel billet on the hot-blast pusher and the real-time position of the steel billet on the steelmaking side, so that a set safety distance is kept between the steel billets on the steel rolling side and the steelmaking side. With further improvement, the roller way speed at the steelmaking side is determined by the following way, Wherein V2 is the roller way speed at the steelmaking side, V0 is the speed of entering the rolling mill from the billet, and V1 is the conveying speed of the billet in the hot-blast pusher. Further, the speed of the billet entering the rolling mill is increased, the speed of the roller way at the steelmaking side is increased, the speed of the billet entering the rolling mill is reduced, and the speed of the roller way at the steelmaking side is reduced. Still further, the speed of the hot pusher is determined by, Wherein V3 is the speed of the hot-blast pusher, V2 is the roller way speed of the steelmaking side, and V1 is the conveying speed of the steel billet in the hot-blast pusher. Further, a speed detection point is set on the hot-blast pusher, and when the real-time position of the steel billet on the hot-blast pusher reaches the speed detection point and the steel billet is on the steel-making side roller way, the speed of the steel-making side roller way is reduced, so that the speed of the hot-blast pusher is r