Sintering Cart Heat Quantity Controller for Uniform Ore Combustion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing equipment for manufacturing sintered ore faces challenges in uniformly controlling heat distribution within the raw material layer, leading to variations in strength and reducibility across the sintered ore, and excessive use of solid fuel, which increases production costs and environmental pollution.
Innovation Solution
The equipment incorporates a heat quantity controller with oxygen, gas fuel, and humidified air supply devices to uniformly distribute heat across the raw material layer, reducing the amount of solid fuel required and improving combustion efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If external air is introduced by the suction force of wind boxes during sintering, then the sintering process can be maintained, but heat quantity is lacked in the upper layer and excessively supplied to the lower layer
Solution Approach 1:
The patent applies local quality by supplying oxygen and gas fuel specifically to the upper layer of the raw material where heat is deficient, while reducing solid fuel in the lower layer where heat is excessive. This localized differentiation of fuel supply addresses the non-uniform heat distribution caused by external air suction, ensuring each layer receives appropriate heat for uniform sintering.
Solution Approach 2:
The patent changes the parameters of fuel supply by transitioning from solid fuel only to a combination of oxygen, gas fuel, and reduced solid fuel. By adjusting the type and distribution of fuels (oxygen concentration, gas fuel flow rate, solid fuel amount), the system achieves uniform heat distribution across different layers despite continuous external air suction.
2Temperature
If liquid fuel is supplied to the upper layer to compensate heat deficiency, then heat distribution can be improved, but the risk of explosion increases
Solution Approach 1:
The patent replaces liquid fuel with gas fuel (such as natural gas or city gas), which is safer and easier to control. Gas fuel can be precisely regulated and does not pose the same explosion risks as liquid fuel, while still effectively compensating for heat deficiency in the upper layer during sintering.
Solution Approach 2:
The patent changes the fuel parameter from liquid to gas phase, which fundamentally alters the safety characteristics. Gas fuel allows for better control of combustion parameters and eliminates the explosion hazards associated with liquid fuel storage and handling, while maintaining the ability to supply heat to the upper layer.
3Temperature
If the amount of solid fuel is reduced in the lower layer, then heat excess can be controlled, but combustion of the raw material layer may not be properly performed
Solution Approach 1:
The patent merges multiple fuel types (oxygen, gas fuel, and solid fuel) into a unified combustion system. By combining these different fuel sources and supplying them in specific proportions to different layers, the system maintains complete and reliable combustion while achieving uniform heat distribution, overcoming the limitations of using solid fuel alone.
Solution Approach 2:
The patent creates a composite fuel system combining oxygen-enriched air, gas fuel, and reduced solid fuel. This composite approach ensures that even with reduced solid fuel in the lower layer, the overall combustion remains complete and reliable due to the synergistic effect of multiple fuel sources working together in different zones.
4Temperature
If oxygen or gas fuel is supplied to the upper layer, then heat distribution can be improved, but accurate control of combustion zone depth becomes difficult
Solution Approach 1:
The patent implements feedback control by measuring the depth of the combustion zone and adjusting the supply rates of oxygen and gas fuel accordingly. This closed-loop control system ensures that the combustion zone maintains the desired depth and that heat distribution remains uniform, achieving both improved temperature control and precise manufacturing parameters.
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 solution ensures uniform heat distribution, enhancing the strength and reducibility of sintered ore, reducing production costs, and minimizing environmental impact by optimizing fuel usage and waste gas management.
Implementation Method 1
supplying a gas including oxygen to a raw material layer... supplying gas fuel to the raw material layer
Implementation Method 2
supplying gas fuel to the raw material layer to which the gas including the oxygen is supplied
Implementation Method 3
supplying humidified air to the sintered ore that is manufactured by sintering the sintering raw material to cool the sintered ore
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The present disclosure relates to equipment for manufacturing sintered ore and a method for manufacturing sintered ore using the same. The equipment for manufacturing the sintered ore includes a plurality of sintering carts that are movable along a movement path and into which a raw material layer is fed, an ignition furnace installed above one side of the movement path to inject a flame to the raw material layer within each of the sintering carts, an ore discharge part installed on the other side of the movement path to discharge the sintered ore in which sintering is completed, a wind box disposed between the ignition furnace and the ore discharge part on the movement path, and a heat quantity controller disposed between the ignition furnace and the ore discharge part over the movement path to supply heat and humidified air to the raw material layer.