Slag Discharge Device Segmentation for Wear Reduction
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Solution Overview
Problem
In gasifier furnaces, the slag discharge mechanism leads to localized damage and reduced durability at the slag capturing portion due to uneven distribution and high friction, causing premature wear.
Innovation Solution
A slag discharge device with a porous capturing portion and a crushing mechanism that includes multiple crushing spaces and a drive system to distribute slag evenly, preventing blockages and extending the lifespan of the capturing surface by ensuring uniform crushing and reducing load on individual crushing portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If molten slag is caused to flow down from a slag flowing-down port, then stable slag flow is achieved, but the amount of passing slag concentrates in a limited range causing localized damage to the slag capturing surface
Solution Approach 1:
The invention divides the single slag flowing-down port into multiple slag flowing-down ports (at least two). This segmentation distributes the slag flow across multiple locations, preventing concentration of slag passage in a limited range. The multiple ports are arranged to discharge slag at different positions, which reduces localized wear and damage to the slag capturing surface while maintaining stable slag flow discharge.
2Stability of the object's composition
If a crushing device is provided to crush captured slag, then slag discharge stability is improved, but the crushing portions experience high load and reduced durability
Solution Approach 1:
The invention divides the crushing device into multiple crushing portions (at least two), where each crushing portion corresponds to a different slag flowing-down port. This segmentation distributes the crushing load across multiple portions rather than concentrating it on a single crushing mechanism. Each crushing portion handles slag from its corresponding port, reducing the cumulative load and wear on individual crushing portions, thereby extending their operational lifespan while maintaining stable slag discharge.
Solution Approach 2:
The invention assigns specific crushing portions to specific slag flowing-down ports, creating a localized correspondence between discharge locations and crushing mechanisms. This local quality arrangement ensures that each crushing portion is optimized for its specific location and load characteristics, distributing the mechanical stress more evenly across the system and preventing any single crushing portion from bearing excessive load.
3Manufacturing precision
If the capturing surface captures slag larger than through-holes, then particle size control is achieved, but the capturing surface suffers from friction and damage localization
Solution Approach 1:
The invention divides the single capturing surface into multiple capturing surfaces, with each capturing surface corresponding to a specific slag flowing-down port and its associated crushing portion. This segmentation distributes the slag capture and crushing operations across multiple locations. By having multiple capturing surfaces instead of one, the friction and wear from slag passage are distributed across multiple surfaces rather than concentrating damage on a single capturing surface, thereby reducing localization of damage while maintaining particle size control through the through-hole aperture.
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 solution effectively curbs localization of damage, extends the lifespan of the slag capturing surface, and ensures stable slag discharge by distributing the load evenly across multiple crushing spaces, preventing blockages and reducing wear.
Implementation Method 1
slag that is generated at a combustor portion and drops from the combustor portion
Implementation Method 2
crushing portions that break, with a pressure, and thus crush the slag
Implementation Method 3
communication portion that causes the plurality of crushing spaces of the crushing means to communicate with each other
Data Source
AI summary
An object is to curb damage localized in a slag capturing portion caused when slag passes therethrough. A slag discharge device includes: a screen mesh (6) that is a porous member including a plurality of through-holes (6a) formed therein; and a crushing device (7) that crushes water-granulated slag (S2) captured by the screen mesh (6). The crushing device has a crusher head (12) that breaks, with a pressure, and thus crushes the water-granulated slag (S2), a hydraulic cylinder (13) that reciprocates the crusher head in a predetermined direction, a guide plate (14) that restricts movement of the crusher head caused by the hydraulic cylinder, and a plurality of crushing spaces (15) in which the water-granulated slag (S2) is crushed. A communication opening that causes the crushing spaces (15) to communicate with each other is formed in a partitioning wall guide plate (14a) of the guide plate.