Tuyeres TRIZ Cases

Dual reducing-gas injection at tuyere and shaft levels cuts coke use and CO2 while stabilizing blast furnace gas flow.

Controlled oxygen outlet position, angle, and jet speed help protect the tuyere front from high-temperature melting and slag damage.

Multiple side nozzles and a defined gas flow index balance circumferential flow in a cylindrical packed bed, improving heating and reduction stability.

Cardan joints and flanged seals keep blast furnace reducing gas injectors gas-tight while accommodating thermal expansion and easing maintenance.

An intermediate injection level for CO-rich top gas reduces coke use and CO2 emissions while preserving blast-furnace productivity.

Separate coal and oxygen injection with inner-tube notches raises combustion temperature at high coal ratios while limiting oxygen use.

Sealing gas surrounds oxygen injection to shield the tuyere end from charged material reactions, extending longevity in molten iron manufacturing.

A bonded core tube assembly distributes shear forces between structural and wear-resistant layers, preventing premature weld failure in direct smelting lances.

Blowing purified top gas with oxygen enrichment reduces CO2 emissions while maintaining stable hot metal production.

Crossing lance injection overlaps solid and flammable reducing agent flows to increase blast furnace combustion temperature.

Injecting mixed solid and inflammable reducing agents via a double tube lance increases combustion temperature while lowering specific agent consumption.

Parallel-type lance bundles three independent tubes to optimize airflow, resolving narrow gap restrictions that limit gas flow and combustibility.

Housing thermoelectric converters in branch line recesses eliminates cumbersome welding, enabling reliable wireless data transmission of coal dust combustion.

A pulverized coal injection lance monitors flame status and reduces combustive gas flow to reignite the flame at the lance tip.

Segmented water passages cool swirl vanes and nose portions, preventing hot spots from overheating metallurgical vessels.

A composite sparger employs a thermally conductive substrate beneath a corrosion-resistant layer to dissipate heat and prevent ignition of pyrophoric materials.

A tube bundle lance houses multiple blowing tubes within a single main tube to deliver solid and gaseous materials into a blast furnace.

Replacing inert nitrogen with fuel gases and oxygen accelerates gasification, reduces coke consumption, and increases injection rates.

Dynamically modulating process gas injection pressure and volume flow within forty-second cycles to enhance turbulence in the shaft furnace vortex zone.

Spiral gas flow from lance equalizes reaction progress and reduces metal loss without external fuel.

Arranging spray nozzles with varying pitch and water amounts to achieve uniform cooling distribution across hot steel plates.

Separating the Laval nozzle element from the mixer reduces manufacturing complexity and maintenance costs in metallurgical units.

Injecting preheated gas at controlled velocity prevents fluidization and stabilizes burden descent during low reducing agent ratio operations.

Regenerative methane reduces carbon dioxide emissions in blast furnaces while maintaining stable tuyere-outlet temperatures.

A metallurgical gas injection lance tip uses concentric sleeves and radial dividers to create discrete water flow paths for cooling.

Segmenting injection paths via a triple tube lance increases combustion temperature while lowering specific reducing agent consumption in blast furnaces.

Dual injection of utility gas and pulverized coal raises combustion temperature while preventing lance deformation through optimized flow velocity.

Hot charging ironmaking charges into the furnace using full-oxygen hydrogen-rich gas recovers sensible heat and reduces CO2 emissions.

A double wall lance injects pulverized coal and oxygen through separate tubes to optimize combustion efficiency in blast furnace operations.

Injecting oxidizing gas into the hot blast air stream preheats the gas, reducing unburned coal particles and fire risk in blast furnaces.

Segmented lance mounting part enables inward hydraulic movement to break slag bonds, eliminating vessel cooling downtime during withdrawal.

Three concentric tubes deliver superheated steam and 180°C oxygen to prevent condensation in high-pressure fluidized bed reactors.

Eliminating 180-degree flow reversal in the nose chamber reduces pressure loss and enhances cooling performance for blast furnace tuyeres.

Positioning LNG lance 0-50 mm ahead of coal lance raises combustion temperature, reducing agent consumption.

Straight and curved slanted surfaces in the guide chute maintain gas permeability in melter-gasifiers while reducing equipment wear.

A gas feeder device integrates a cooling air jacket around the supply line to accommodate furnace lining expansion and prevent thermal damage.

Extrinsic combustion from a solid fuel burner reduces coke consumption and carbon monoxide formation in shaft furnaces.

Curved baffle ends in serpentine passages eliminate eddy currents at high velocities, ensuring uniform heat transfer and preventing hot spots.

Segmented casing with refractory insulation enables angled gas injection, eliminating cooling systems and reducing equipment weight.

Copper cooling pipes receive a lower melting point alloy coating before casting to ensure metallurgical bonding.

Thermal cracking of hydrocarbons in upper furnace zones carries redundant heat from the lower high-temperature area to resolve cold upper part conditions.

External arm structures support the circumferential pipe at multiple heights, increasing injection points while reducing weight and leakage risks.

Intersecting guide plates in a reduction furnace charging device redirect iron ore flow to prevent segregation and ensure uniform dispersion.

Hydraulic percussion mechanisms apply impact forces to extraction rods, resolving insufficient traction and high manual exposure risks during tuyere removal.

Segmented plug valve aligns through passage with gas channel to eliminate obstruction pressure drop and allow independent component replacement.

Extracting methane from synthesis gas allows precise temperature management and carburization control, preventing excessive exhaust emissions.

Integrating reducing gas channels into a cooling element eliminates extra components, resolving device complexity trade-offs while cutting CO2 emissions.

Multi-level support arms eliminate heavy frames and compensators, increasing injection points while reducing refractory wear.

Flow guidance structure directs gas flow to channel center, reducing thermal damage and extending nozzle service life.

Flame envelopes stabilize supersonic argon jets, preventing concentration decay and oxidation while enhancing molten metal stirring.

Vertical stacking of smelting, combustion, and offgas zones within a fixed vessel increases productivity while maintaining a compact operational footprint.