Top Combustion Stove Burner with Vertical Distribution Chambers
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Solution Overview
Problem
Existing top combustion hot blast stove burner configurations are fragile due to circumferential conduits and require numerous differently shaped bricks, leading to complex assembly and poor structural stability.
Innovation Solution
A burner assembly with tangentially fed air and gas nozzles arranged in inclined or vertical stacked arrays, connected to separate distribution chambers along the circumference of a circular burner shell, eliminating the need for annular conduits and simplifying the brick structure, while integrating manifold pipes for fluid connection to the supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If circumferential conduits are used for distributing air and gas in known top combustion stoves, then combustion media can be distributed to the burner, but the burner shell structure becomes fragile and requires numerous differently shaped bricks
Solution Approach 1:
The distribution system is segmented into separate vertical air distribution chambers and gas distribution chambers, each serving specific zones. This eliminates the need for complex circumferential conduits while maintaining effective media distribution to the burner
Solution Approach 2:
The distribution chambers are arranged vertically rather than horizontally/circumferentially. This dimensional change from horizontal ring distribution to vertical stacked distribution eliminates structural weaknesses while preserving combustion performance
2Ease of operation
If circumferential conduits are integrated within the burner shell, then combustion media distribution is achieved, but the shell structure is rendered fragile
Solution Approach 1:
The burner shell is segmented into continuous wall sections between discrete vertical distribution chambers. This segmentation eliminates weak points caused by circumferential conduits while maintaining effective combustion media distribution through the vertical chamber arrangement
Solution Approach 2:
The distribution chambers are extracted as distinct vertical elements rather than being integrated as circumferential conduits within the shell. This extraction preserves shell structural integrity while maintaining distribution functionality
3Device complexity
If numerous differently shaped bricks are used in the burner assembly, then the required structural configuration is achieved, but assembly work becomes significant and complex
Solution Approach 1:
The vertical distribution chamber configuration allows for more uniform brick shapes and arrangements compared to circumferential conduit systems. This homogeneity reduces the variety of differently shaped bricks needed and simplifies assembly procedures
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 enhances combustion performance with improved layering and burn-off of combustion media, increases structural stability, and reduces assembly complexity by eliminating the need for weak inner ring bricks, allowing for easier maintenance and upgrade of the burner assembly.
Implementation Method 1
a number of air nozzles arranged (within the burner shell) for tangentially feeding air to the burner, the air nozzles being connected to two or more (separate) air distribution chambers; a number of gas nozzles arranged (within the burner shell) for tangentially feeding gas to the burner
Implementation Method 2
The heating of the checker bricks is done by burning top gas from a blast furnace usually enriched with natural gas or coke oven gas in the presence of air, the resulting flue gases being passed through the checker bricks
Implementation Method 3
the two or more air distribution chambers are inclined or vertical and the air nozzles are arranged in two or more inclined or vertical stacked arrays of air nozzles, each inclined or vertical stacked array of air nozzles being in connection with one of the two or more inclined or vertical air distribution chambers
Data Source
Figure 1
Figure 2
AI summary
A burner assembly for top combustion hot blast stove comprising a burner surrounded by a burner shell, wherein said burner has a circular cross-section; a number of air nozzles arranged for tangentially feeding air to the burner, the air nozzles being connected to one or more air distribution chambers;a number of gas nozzles arranged for tangentially feeding gas to the burner, the gas nozzles being connected to one or more gas distribution chambers;wherein the air nozzles are arranged in one or more inclined or vertical stacked arrays of air nozzles, each inclined or vertical stacked array being in connection with one inclined or vertical air distribution chamber; the gas nozzles are arranged in one or more inclined or vertical stacked arrays of gas nozzles, each inclined or vertical stacked array being in connection with one inclined or vertical gas distribution chamber; and the inclined or vertical air distribution chamber(s) and the inclined or vertical gas distribution chamber(s) are arranged along the circumference of the burner shell.