Double Cavity Slag Drum with Mandrel Support
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Solution Overview
Problem
Existing metallurgical slag treatment equipment by the barrel method faces issues such as insufficient cooling leading to red slag, high weight and maintenance challenges, and high investment costs due to large and complex designs, which affect the quality and efficiency of slag treatment.
Innovation Solution
The introduction of a double cavity type steel slag treatment equipment with mandrel support, spiral sending plates, and a retaining ring with smooth surfaces to reduce weight, enhance cooling efficiency, and simplify maintenance, along with convex sending hands to improve heat transfer and slag handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single layer barrel body construction is used, then the equipment structure is simple, but the cooling of slag material is insufficient and red slag tends to appear
Solution Approach 1:
The single layer barrel body is segmented into multiple layers (first barrel body and second barrel body) with different functions. The first barrel body performs initial cooling while the second barrel body provides further cooling and drying, allowing each layer to specialize in specific cooling tasks and achieve better overall cooling efficiency without excessive complexity
Solution Approach 2:
The invention transitions from a single-layer to a multi-layer barrel body structure, adding the dimension of vertical stacking. This allows slag to undergo sequential cooling through multiple layers with different cooling intensities and mechanisms, significantly improving cooling efficiency while maintaining a compact overall structure
2Reliability
If traditional supporting devices are used, then the equipment is stable, but the equipment is heavy and maintenance is inconvenient
Solution Approach 1:
Instead of uniformly supporting the entire barrel body, the invention uses roller supporting devices only at critical locations (below the barrel body at both ends). This localized support approach maintains structural stability where needed while reducing overall equipment weight and simplifying maintenance
Solution Approach 2:
The invention extracts and eliminates unnecessary supporting components from the traditional design. By using a simplified roller support system below the barrel body rather than complex multi-point supporting devices, the equipment achieves adequate stability with reduced weight and easier maintenance
3Ease of operation
If a conical barrel body with sending plates is used, then slag material can be discharged, but the outer diameter is very large and investment is high
Solution Approach 1:
Instead of using a conical shape with outward-sloping sending plates that require large diameter, the invention inverts the approach by using an inclined inner surface that directs slag inward toward the center. This allows slag discharge without requiring a large outer diameter, reducing equipment volume and investment
Solution Approach 2:
The invention uses the dynamic rotation of the barrel body to achieve slag discharge rather than relying on static conical geometry. The rotating motion naturally moves slag along the inclined inner surface toward the discharge outlet, eliminating the need for large-diameter conical structures with fixed sending plates
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 reduces equipment weight and cost, improves cooling efficiency, and enhances slag treatment performance, allowing for more effective cooling and handling of viscous slag, thereby improving product quality and reducing maintenance complexity.
Implementation Method 1
after being cooled and crushed, by cooling body 8 (steel balls) leaks out through the slits between the grid sections
Implementation Method 2
The slag material after being treated in the inner barrel body falls by gravity to the inside of the conical surface of the outer barrel body and is guided on the inclined surface of the conical body into the cylindrical barrel portion
Implementation Method 3
The force moment causing the rotation of flow branching pans comes from a mandrel 6
Data Source
AI summary
A double cavity type steel slag treatment equipment by barrel method employing mandrel support comprises left and right barrel bodies, flow branching pan, mandrel, feed funnel. Between the left and right barrel bodies is disposed a flow branching pan, over which is mounted a feed funnel and below which is mounted a retaining ring. The mandrel is fixedly connected to the left and right barrel bodies and flow branching pan, supporting bearings are mounted at two ends of the mandrel, left and right barrel bodies have inner and outer portions, inner barrel body is made of grid section, one end of grid section is fixed on the end cover of outer barrel body through an insertion opening made of supporting rings, the other end of grid section is joined with the supporting ring fixedly connected on outer barrel body.