Roll Stand Integrated Suction Ducts for Metal Strip Rolling
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Solution Overview
Problem
Existing rolling mill suction devices require large, cumbersome extractor hoods that complicate operation and increase costs due to their size and arrangement, necessitating a more economical and simplified design.
Innovation Solution
Integrating inlet and outlet suction ducts directly into the roll stand, guiding them in a vertical straight line close to the rolls, eliminating the need for oversized suction hoods and allowing for compact design and adjustable sections to match strip thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If large extractor hoods are used for suction, then dust and smoke can be effectively removed, but the device becomes cumbersome and operation becomes more difficult
Solution Approach 1:
The suction device is merged with the roll stand structure itself. The suction ducts are integrated into the roll stand framework, combining the rolling function and suction function into a single unified structure, eliminating the need for separate large extractor hoods
Solution Approach 2:
The suction slots are positioned in the vertical dimension directly at the roll gap level where dust and smoke are generated, rather than using large horizontal hoods. This vertical positioning at the source enables effective suction with minimal structure
2Object-affected harmful factors
If large extractor hoods are used for suction, then dust and smoke can be effectively removed, but the construction costs increase
Solution Approach 1:
The suction device is merged with the roll stand structure itself. The suction ducts are integrated into the roll stand framework, combining the rolling function and suction function into a single unified structure, eliminating the need for separate large extractor hoods
Solution Approach 2:
The roll stand structure serves dual functions: it performs the rolling operation and simultaneously houses the suction ducts and slots. This multi-functionality eliminates the need for separate suction equipment, reducing construction costs
3Quantity of substance
If suction slots are positioned close to the roll gap, then the amount of air required for suction is reduced, but the suction device structure becomes more complex
Solution Approach 1:
The suction ducts are integrated into the roll stand structure, with slots positioned at the roll gap level. This merging of structures eliminates the complexity of separate positioning mechanisms while achieving optimal suction efficiency
Solution Approach 2:
The suction slots are pre-positioned at the roll gap level in the roll stand structure before operation begins. This preliminary positioning ensures optimal suction efficiency from the start without requiring complex adjustment mechanisms during operation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration simplifies and cost-reduces the suction device while ensuring effective air contamination removal near the roll gap without excessive external air intake, maintaining operational efficiency and space savings.
Implementation Method 1
a suction device for sucking off vapor or dust from the surface of the metal strip
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a rolling installation comprising a roll stand (110) for rolling a metal strip and a suction device (120) for sucking polluted air from the immediate environment of the metal strip to be rolled. The aim of the invention is to structurally simplify the suction device. To this end, the inlet guiding region (112) is defined on one side by an inlet guiding plate (113) and the inlet suction channel (120) is connected to the inlet guiding region (112) via an opening (113-O) in the inlet guiding plate (113). The same arrangement can be applied to the discharge suction channel (124) and the discharge guiding region (114).