Steel Slag Roller Granulation with Universal Feeding
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Solution Overview
Problem
Current roller processes for steel slag treatment are limited in handling both molten and solid tank bottom slag, requiring multiple devices and increasing costs, with no single device capable of efficiently treating total-amount steel slag due to differences in fluidity and viscosity.
Innovation Solution
A roller treatment process and device that utilizes a slag tank tilting mechanism and slag removal machine to tilt and pour molten slag into a rotating roller unit, and then inverts the tank to drop solid tank bottom slag, allowing for total-amount treatment in a single unit with a novel feeding chute and spray cooling system, ensuring safe and environmentally friendly processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional roller process is used for steel slag treatment, then molten slag with good fluidity can be treated, but solid tank bottom slag with poor fluidity cannot be effectively treated
Solution Approach 1:
The roller device is designed with a universal feeding mechanism that can handle both fluid molten slag and solid tank bottom slag through the same cooling and granulation process, eliminating the need for separate treatment devices for different slag types
Solution Approach 2:
The feeding system incorporates dynamic adjustment capabilities that adapt the feeding rate and method based on the fluidity characteristics of the slag being processed, allowing the same device to optimize its operation for both fluid and solid slag conditions
2Adaptability or versatility
If multiple roller devices are equipped for treating both molten slag and tank bottom slag, then total-amount treatment is achieved, but investment and operational costs increase
Solution Approach 1:
A single roller device is designed to perform the function of multiple specialized devices by incorporating adaptive feeding mechanisms and a universal cooling system that can process both fluid molten slag and solid tank bottom slag through the same granulation process, thereby reducing capital investment and maintenance costs
Solution Approach 2:
The patent combines the previously separate treatment functions for molten slag and tank bottom slag into a single integrated roller device, merging the feeding systems, cooling mechanisms, and granulation processes to achieve total-amount treatment while reducing the number of devices required
3Productivity
If hot splashing and post-treatment process is used, then steel slag can be cooled and processed, but the cooling treatment spot becomes large and working environment deteriorates
Solution Approach 1:
The patent converts the harmful hot splashing process into a beneficial controlled spraying process where water is sprayed directly onto the molten slag in a contained environment, transforming the previously harmful dust-generating cooling method into a controlled, efficient cooling process that reduces harmful emissions
Solution Approach 2:
The patent replaces the traditional mechanical shovel turning and air cooling system with a water spraying cooling system that directly cools the slag in a controlled manner, eliminating the need for large open cooling areas and reducing powder dust diffusion into the working environment
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
Enables efficient, safe, and environmentally friendly treatment of both molten and solid steel slag in a single roller unit, achieving uniform feeding, rapid cooling, granulation, and recycling, while reducing capital and operational costs by eliminating the need for multiple devices.
Implementation Method 1
a spray cooling system
Implementation Method 2
rapid cooling
Data Source
AI summary
A roller treatment process and a treatment device suitable for a total-amount steel slag treatment. The treatment process is: firstly, a slag tank (2) with the molten slag is tightly held by a slag tank tilting mechanism and moved to a slag inlet position, the slag tank (2) is tilted to pour the molten slag with good fluidity into a rotary roller device (5) through a feeding chute (51), so that a roller treatment is achieved; secondly, when the steel slag (3) without fluidity in the slag tank (2) cannot flow out, a slag removal machine (4) is used for pushing the high-viscosity slag or the solid slag into the roller device (5); and thirdly, the slag tank (2) is reversed by a large angle tilting to make the slag at the bottom of the tank drop into the roller device (5), so that the total-amount steel slag treatment of the same roller device (5) is achieved. The treatment device comprises a feeding system, the roller device (5), a particle slag conveying and storage system (7), a tail gas emission and purification system (6), a cooling water circulation system (8), a cold steel cleaning mechanism (10) and an electric control system (9); and the feeding system comprises the slag tank tilting mechanism (1), the slag tank (2), the molten slag (3) and the slag removal machine (4).