Inclined Storage Bin Feeding for Continuous Steel Slag Drum Processing
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Solution Overview
Problem
Conventional rotary drum methods for processing steel slag are inefficient in handling steel slag with low fluidity, particularly large pieces at the bottom of the tank, and pose safety hazards due to high temperature accumulation, requiring manual intervention and leading to environmental pollution.
Innovation Solution
A high efficiency processing method and plant using a tilting mechanism to feed steel slag into a storage bin inclined at 0-25°, which acts as a buffer, allowing slag to slide into a rotary drum for continuous processing, combined with mechanical cleaning and cooling systems to prevent explosions and enhance safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional rotary drum process is used for steel slag processing, then the processing system is simple, but the processing efficiency is low and it cannot handle viscous and solid steel slags effectively
Solution Approach 1:
The steel slag processing system is segmented into multiple functional modules: tilting mechanism for slag tank, storage bin with buffer capacity, rotary drum with cooling chambers, and separate cleaning mechanisms. This segmentation allows each component to specialize in specific tasks, improving overall processing efficiency while maintaining manageable system complexity through modular design.
Solution Approach 2:
The storage bin serves as a preliminary action buffer that receives and temporarily stores steel slag before it enters the rotary drum. This preliminary buffering action allows the system to handle viscous and solid slags effectively by providing time for temperature equalization and flow stabilization, thereby improving processing efficiency without requiring complex real-time control mechanisms.
2Adaptability or versatility
If manual scraping and mechanical assistance are used to remove slag from slag tank, then all types of steel slag can be processed, but safety hazards increase and operation becomes complex
Solution Approach 1:
The tilting mechanism acts as an intermediary device between the slag tank and the processing system. By automatically tilting the slag tank to control slag flow, it eliminates the need for manual scraping operations while maintaining the ability to handle all types of steel slag. This intermediary mechanism significantly improves safety by removing human operators from hazardous environments while preserving versatile slag handling capability.
Solution Approach 2:
The slag tank tilting mechanism enables self-service operation where the system automatically controls slag discharge without manual intervention. The tank tilts under controlled conditions to pour slag into the storage bin, and the entire process is automated, eliminating safety hazards associated with manual scraping while maintaining adaptability to handle viscous, solid, and fluid slag types.
3Speed
If high temperature steel slag is poured directly into rotary drum, then processing is fast, but explosion risk increases due to accumulated heat
Solution Approach 1:
The storage bin serves as a beforehand cushioning buffer between the high-temperature slag source and the rotary drum. It temporarily stores incoming slag, allowing heat distribution and temperature equalization before slag enters the drum. This cushioning action maintains fast processing speed while preventing dangerous heat accumulation that could lead to explosions.
Solution Approach 2:
The storage bin acts as an intermediary buffer zone that mediates between high-temperature slag input and the rotary drum processing. It provides a transition space where thermal energy is distributed safely, preventing direct accumulation of extreme heat in one location while maintaining continuous fast processing throughput.
4Productivity
If slag tank is tilted to pour viscous and solid slag, then complete slag discharge is achieved, but processing time increases and continuity is disrupted
Solution Approach 1:
The storage bin performs preliminary action by receiving and pre-storing slag from the tilted tank before it enters the rotary drum. This preliminary buffering allows the system to maintain continuous processing because the drum can operate continuously drawing from the bin's inventory, while the tank tilting operation can proceed at its own pace without disrupting overall processing continuity.
Solution Approach 2:
The system segments the slag handling process into distinct phases: tank tilting and discharge phase, and drum continuous processing phase. The storage bin enables this segmentation by decoupling the two operations, allowing complete slag discharge from the tank without interrupting the continuous operation of the rotary drum, thereby maintaining productivity while accommodating extended discharge time for viscous and solid slags.
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 double the processing efficiency of conventional methods, ensures continuous operation with reduced safety hazards, and enables safe, automated processing of all types of steel slag, including high temperature and viscous slag, with minimal environmental impact.
Implementation Method 1
the high temperature steel slag is cooled rapidly and solidified at the inner wall of the storage bin
Implementation Method 2
crushing the slag into granular product slag with a particle diameter of less than 50 mm
Implementation Method 3
the slag tank is tilted so that the high temperature steel slag with high fluidity in the slag tank can be poured through a feeding chute
Data Source
AI summary
The disclosure provides a high efficiency processing method and plant for multiphase steel slag. The plant comprises a steel slag feeding equipment and a rotary drum for processing steel slag. The feeding equipment comprises a feeding chute; the processing plant further comprises a storage bin is provided between the feeding chute and the rotary drum, the storage bin is in a shape of barrel, with one end forming a rotatable fit with a lower opening end of the chute with a funnel, the other end being connected with a processing chamber of the rotary drum and coaxial with the rotary drum. With the storage bin that is inclined and provided between the front of the rotary drum and the feeding chute, working as buffer transition section, the safe rotary drum processing for each type of steel slag can be achieved without using the slag removal equipment.