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Production scheduling method and system for improving product quality and plate blank extraction efficiency

A technology of extraction efficiency and product quality, applied in rolling mill control devices, metal processing equipment, metal rolling, etc., can solve the lack of rationality and scientificity, low extraction efficiency of rolled slabs, affecting the continuity of hot rolling production, etc. question

Active Publication Date: 2015-05-20
NORTHEASTERN UNIV
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Problems solved by technology

This method is a qualitative method, which lacks rationality and scientificity, which makes the extraction efficiency of rolled slab low and affects the continuity of hot rolling production.

Method used

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  • Production scheduling method and system for improving product quality and plate blank extraction efficiency
  • Production scheduling method and system for improving product quality and plate blank extraction efficiency
  • Production scheduling method and system for improving product quality and plate blank extraction efficiency

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Embodiment Construction

[0058] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0059] figure 2 It shows a schematic flow chart of the production scheduling method for improving product quality and slab extraction efficiency provided by the first embodiment of the present invention, as shown in figure 2 As shown, the method of this embodiment is as follows.

[0060] 201. Obtain hot-rolling production process data and spatial location information of slabs located in a slab warehouse.

[0061] In this step, it can be understood that in the prior art, the slab storage is used as a buffer link between continuous casting and hot rolling to store slabs required for hot rolling production. After the slab warehouse logistics management system receives th...

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Abstract

The invention provides a production scheduling method and system for improving product quality and plate blank extraction efficiency. Hot rolling production process data and space position information of plate blanks in a plat blank yard are obtained, the specification range of the plate blanks rolled through hot rolling production is determined, a hot rolling production operation plan candidate plate blank pool is built, the sum of the plate blank quality obtained after rolling and the plate blank extraction efficiency is set to an objective function, the specification change cost of the plate blanks in the hot rolling production operation plan candidate plate blank pool is calculated according to hot rolling production process requirements, then a hot rolling production operation plan is obtained according to the objective function and the specification change cost of the plate blanks, and the hot rolling production operation plan is output. The method is used for lowering production cost, improving the product quality and the plate blank extraction efficiency and guaranteeing hot rolling production continuity.

Description

Technical field: [0001] The invention relates to the technical field of metal material processing information, in particular to a production scheduling method and system for improving product quality and slab extraction efficiency. Background technique: [0002] The hot rolling production process mainly goes through four stages: heating furnace, rough rolling, finishing rolling, and crimping. The raw materials used for hot rolling are slabs produced through steelmaking-continuous casting, and the slabs are stacked in stacks in the slab warehouse, such as figure 1 shown. The slabs in the raw material warehouse that are ready to enter the hot rolling rolling line are moved to the furnace roller table by the crane and transported to the heating furnace according to the rolling sequence by the crane and the crane, and heated to the required temperature. After the furnace temperature is released, it is then transported to the rough rolling unit for rolling through the furnace r...

Claims

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Application Information

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IPC IPC(8): B21B37/00
CPCB21B37/00
Inventor 唐立新赵任
Owner NORTHEASTERN UNIV
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