Sinter Delivery Chute with Inclined Distributor Plates
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Solution Overview
Problem
Conventional delivery chutes for sinter material result in nonuniform particle size distribution on the sinter cooler's cooling bed, leading to inefficient cooling and potential damage to subsequent processing apparatus due to varying resistance to airflow, as coarser particles accumulate on one edge and smaller particles on the other, causing uneven cooling.
Innovation Solution
A delivery chute design that divides sinter material into subflows with different flow directions using inclined distributor plates, which combine into a total flow with a specific angle distribution, guiding the material to the lateral edges and reversing flow direction with a base plate to ensure uniform distribution and reduce particle size gradient.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional delivery chute is used, then sinter material is delivered onto cooling bed, but particle size distribution becomes nonuniform causing inefficient cooling
Solution Approach 1:
The delivery chute is divided into multiple delivery zones (first, second, third delivery zones) with different outlet openings positioned at different heights and locations. Each zone delivers material to different regions of the cooling bed, segmenting the flow to achieve more uniform particle size distribution across the entire cooling bed surface.
Solution Approach 2:
Different regions of the cooling bed receive material with different particle size characteristics from different delivery zones. The first delivery zone delivers to a first region, the second delivery zone to a second region, and the third delivery zone to a third region, creating locally optimized particle size distributions that collectively improve overall uniformity.
2Stability of the object's composition
If coarser particles accumulate on one edge, then particle size gradient forms, but airflow resistance varies causing nonuniform cooling
Solution Approach 1:
The cooling bed is divided into multiple cooling zones corresponding to different delivery zones. Each zone has its own outlet opening positioned to deliver material to a specific region, segmenting the cooling process to ensure uniform airflow resistance and temperature distribution across different areas of the cooling bed.
Solution Approach 2:
The delivery chute system acts as an intermediary device that controls and regulates the distribution of particle sizes to different regions of the cooling bed. By positioning outlet openings at different heights and locations, it mediates the material flow to achieve uniform particle size distribution and consequently uniform cooling across the entire cooling bed.
3Ease of operation
If delivery chute has shaft with side walls and inclined base plate, then material flow is directed, but particle size segregation occurs extending gradient over thickness
Solution Approach 1:
The delivery chute is segmented into multiple independent delivery zones, each with its own outlet opening positioned at different heights and locations. This segmentation prevents the formation of a single thick particle size gradient by distributing material flow across multiple discrete outlets, thereby maintaining more uniform particle size distribution in the delivered material.
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 method achieves improved uniformity of particle size distribution on the cooling bed, enhancing airflow resistance and cooling efficiency by preventing particle size accumulation on edges, ensuring uniform cooling and reducing temperature variations in discharged sinter material.
Implementation Method 1
an opening is left through which the sinter material can move following the force of gravity in the direction of the outlet opening
Implementation Method 2
cooling is carried out using a machine-generated air flow which may be fed from below through the hot granular sinter material placed on the cooling bed of the sinter cooler
Data Source
AI summary
A delivery chute for delivering sinter material onto a sinter cooler and a method for delivering sinter material from a sinter belt onto a sinter cooler are provided. The sinter material introduced into the delivery chute may be divided by distributor plates into at least two sinter material subflows flowing in different directions, which may be guided into the edge regions of a sinter material total flow obtained by combining them.