Compact Cutting Delivery Device for Continuous Casting Safety
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Solution Overview
Problem
The existing combined casting-rolling installations have a lengthy cutting up and delivery device, leading to increased capital and operating costs, material cooling, blister formation, and operational inefficiencies, as they require a significant length to prevent collisions and maintain operational safety during faults.
Innovation Solution
A compact cutting up and delivery device with a clamping device, raising device, and delivery device configuration that allows for fault bypass without interrupting the continuous casting operation, reducing the overall length of the device and minimizing capital and operating costs by securely clamping and moving the strand portion away from the shears, thus preventing collisions and reducing material cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cutting up and delivery device is made longer to prevent collisions and maintain operational safety during faults, then operational safety is improved, but capital investment costs and operating costs increase
Solution Approach 1:
The cutting up and delivery device is divided into distinct functional segments: a first delivery device for normal operation, and a second delivery device activated during faults. The raising device is positioned between these segments to separate the strand portion from the preliminary material. This segmentation allows each component to be optimized independently and reduces the overall device length while maintaining safety functions.
Solution Approach 2:
The raising device is pre-positioned between the two delivery devices to perform preliminary separation of the strand portion from the preliminary material before any collision can occur. This preliminary action of raising the tail part creates immediate separation when a fault occurs, eliminating the need for excessive device length to prevent collisions.
2Reliability
If the cutting up and delivery device is made longer to prevent collisions during faults, then operational safety is improved, but material cooling and blister formation increase
Solution Approach 1:
The raising device performs preliminary separation by raising the tail part of the strand portion immediately when a fault occurs, before the material travels a long distance. This preliminary action minimizes the travel distance of the separated material, thereby reducing cooling time and preventing blister formation while maintaining safety.
Solution Approach 2:
The raising device extracts the tail part of the strand portion from the continuous material flow by lifting it off the roller table. This extraction creates immediate separation between the fault-isolated section and the continuing production, reducing the distance the material must travel in a vulnerable state and minimizing cooling effects.
3Reliability
If a raising device is used to pull the tail of the strand portion away from the shears, then collision prevention is improved, but device length increases
Solution Approach 1:
The raising device operates in the vertical dimension by lifting the tail part of the strand portion off the roller table, rather than requiring additional horizontal length. This dimensional change allows collision prevention through vertical separation while maintaining a compact horizontal footprint, effectively resolving the contradiction between safety and device length.
Data Source
AI summary
A method and device for producing hot-rolled products in a combined continuous casting and rolling system includes a device for separating and removing. In order to overcome a disruption in production in a part of the system located downstream of the device for separating and removing, the method includes: (a) separating the endlessly produced precursor material into a strand portion with shears; (b) clamping the strand portion; (c) raising the trailing part of the strand portion from the roller table by a raising device, so that the strand portion is drawn away from the shears in the direction of transport; (d) cutting the precursor material into a precursor material portion with the shears; (e) removing the precursor material portion from the roller table, and removing the strand portion until the combined continuous casting and rolling system is ready to operate again.