Title

INTELLIGENT TUYERE STOCKS SOLUTION

INTELLIGENT TUYERE STOCKS SOLUTION

Authorship

Simoes, Jean-Paul; Tockert, Paul; Hausemer, Lionel; Jung, Benoît; Bourg, Paul; Reuter, Yves; Kaufmann, Chris; Oliveira, Victor

Simoes, Jean-Paul

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Tockert, Paul

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Hausemer, Lionel

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Jung, Benoît

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Bourg, Paul

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Reuter, Yves

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Kaufmann, Chris

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Oliveira, Victor

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DOI

10.5151/2594-357X-23867

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Abstract

Maximizing availability and life time of equipment as well as reducing operating expenses are two major goals in today’s hot metal production. Paul Wurth's complete, intelligent tuyere stock solution comprising of low energy tuyere stocks, a phenomena detection system, hot blast flow control valve, blowpipe temperature monitoring and dismantling equipment contributes to achieve these objectives. The low energy tuyere stock minimizes the heat losses allowing for coke savings and reduced CO2 emissions. Attributed to the double layer insulating castable the tuyere stock shell temperature is significantly reduced allowing for a longer lifetime. The tuyere phenomena detection system as well as the hot blast flow control valve improves safety and flexibility. The tuyere and auxiliary injection systems can be permanently monitored via digital camera so that potential issues can be detected early, resulting in accident and damage cost-avoidance. Additionally, periodic inspection on site is no longer required, increasing security and improving efficiency. The hot blast flow control valve allows a smooth and progressive reduction of hot blast flow in any area around the blast furnace periphery. This potentially improves conditions in the taphole area, and operation in other critical zones. The permanent monitoring of blowpipe temperatures in the critical area of the nose offers the possibility to check the condition of the equipment.

Maximizing availability and life time of equipment as well as reducing operating expenses are two major goals in today’s hot metal production. Paul Wurth's complete, intelligent tuyere stock solution comprising of low energy tuyere stocks, a phenomena detection system, hot blast flow control valve, blowpipe temperature monitoring and dismantling equipment contributes to achieve these objectives. The low energy tuyere stock minimizes the heat losses allowing for coke savings and reduced CO2 emissions. Attributed to the double layer insulating castable the tuyere stock shell temperature is significantly reduced allowing for a longer lifetime. The tuyere phenomena detection system as well as the hot blast flow control valve improves safety and flexibility. The tuyere and auxiliary injection systems can be permanently monitored via digital camera so that potential issues can be detected early, resulting in accident and damage cost-avoidance. Additionally, periodic inspection on site is no longer required, increasing security and improving efficiency. The hot blast flow control valve allows a smooth and progressive reduction of hot blast flow in any area around the blast furnace periphery. This potentially improves conditions in the taphole area, and operation in other critical zones. The permanent monitoring of blowpipe temperatures in the critical area of the nose offers the possibility to check the condition of the equipment.

Keywords

Tuyere stock; Tuyere phenomena detection system; Hot blast flow control valve; Lifetime; Equipment availability.

Tuyere stock; Tuyere phenomena detection system; Hot blast flow control valve; Lifetime; Equipment availability.