Segmented Scraping Apparatus for Matte-Sticking Removal in Copper Smelting
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Solution Overview
Problem
The existing methods for removing matte-sticking from the inner surface of the inclined rear jacket of an exhaust gas hood in copper smelting operations are inefficient and require significant downtime, as they often rely on manual removal and are not effective in covering the entire surface, leading to operational disruptions and potential damage from falling debris.
Innovation Solution
A mechanical apparatus with paired scraping means, each comprising a shaft and a shovel-shaped scraping part with a backboard and auxiliary plates, is used to remove matte-sticking from the inner surface of the exhaust gas hood's rear jacket, arranged in multiple levels along the inclination to cover the entire surface, and a method involving sequential operation of these scraping means from the sidewalls to scrape and recover the matte-sticking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual removal methods are used, then operational simplicity is maintained, but productivity is significantly reduced due to long removal time
Solution Approach 1:
The scraping means are divided into multiple pairs arranged at different heights along the inclined rear jacket. Each pair consists of a scraper and its driving mechanism, allowing independent operation at different levels. This segmentation enables comprehensive coverage of the entire rear jacket surface while maintaining manageable operational complexity through modular design.
Solution Approach 2:
The scraping means are designed to be self-operating through driving mechanisms that automatically move the scrapers along the rear jacket surface. The system eliminates the need for continuous manual intervention by incorporating automated driving means that can operate the scrapers sequentially or simultaneously, significantly improving productivity while reducing labor requirements.
2Area of stationary object
If scraping means are arranged in multiple levels, then complete surface coverage is achieved, but device complexity increases
Solution Approach 1:
The scraping system is segmented into multiple pairs positioned at different heights along the inclined rear jacket. Each pair independently covers a specific vertical zone, ensuring complete surface coverage. The segmented design allows each unit to be relatively simple while the collective system achieves comprehensive area coverage.
Solution Approach 2:
The scraping means are arranged not only horizontally but also vertically along the inclined surface, utilizing the height dimension to achieve complete coverage. This multi-dimensional arrangement ensures that all areas of the rear jacket, including upper and lower sections, are effectively scraped without requiring excessive complexity in each individual scraping unit.
3Productivity
If mechanical scraping apparatus is introduced, then productivity is improved, but ease of operation is reduced
Solution Approach 1:
The driving mechanisms are designed to automatically operate the scraping means without requiring complex manual control. The system can be operated by simply activating the driving means, which then autonomously moves the scrapers along the rear jacket. This self-service capability maintains ease of operation while dramatically improving productivity through mechanical automation.
Solution Approach 2:
Manual mechanical scraping is replaced with automated driving mechanisms that reduce operational complexity. Instead of requiring operators to manually position and operate multiple scrapers, the driving means automatically control the scraping process, improving productivity while simplifying the operational interface to basic activation controls.
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
The apparatus allows for safe and efficient removal of matte-sticking from the inclined and broad surface of the rear jacket, reducing operational downtime and preventing blockages by ensuring complete coverage and effective scraping from bottom to top, facilitating regular and reliable operation.
Implementation Method 1
scraping means arranged in pairs, each provided with a scraping part for scraping off matte-sticking by moving slidably across the inner surface
Data Source
AI summary
An apparatus and method are provided to remove matte-sticking adhered to an inner surface of an inclined rear jacket of an exhaust gas hood for collecting exhaust gas discharged during the converter operation in copper smelting. Scraping means 10a˜10f are each provided with a scraping part 20 for scraping off matte-sticking by moving slidably across the inner surface of the rear jacket 8 by driving means 11 from a sidewall of the exhaust gas hood to at least over the centerline L of the width of the rear jacket 8. The scraping means are arranged in pairs at both right and left sidewalls of the exhaust gas hood 6 in multiple levels along the inclination of the rear jacket 8, thereby allowing the matte-sticking adhered to the rear jacket 8 to be removed over almost its entire surface.