Systems & assemblies
Blast furnace bell-less top charging system
Burden charging and distribution equipment for blast furnace top systems.
View productBLAST FURNACE BELL-LESS TOP
Controlled charging.
Precise distribution.
Burden charging and distribution equipment for blast furnace top systems.
Discuss your requirementsTHE APPLICATION
From burden storage
to controlled placement.
A bell-less top brings together burden storage, gas sealing, pressure equalization and controlled distribution. Chute rotation and tilt work with material flow control to place the burden where the process requires it.
Material gates control burden movement. Sealing valves establish the gas boundary. These functions are coordinated with pressure equalization and the charging sequence.
EQUIPMENT GALLERY
A closer look
at the equipment.
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Charging system and chute drive
Charging arrangement with hopper, material valves, sealing valves, distributor and chute; adjacent drive cross-section.
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Receiving hopper
Receiving hopper for accepting burden material before transfer to the charging bin.
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Material gate
Material gate for releasing burden from the receiving hopper toward the charging bin.
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Charging bin / lock hopper
Charging bin for burden storage within the pressure-cycling top system.
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Material flow control valve
Material flow valve for coordinating burden discharge with chute motion.
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Upper sealing valve
Upper sealing valve used at the charging-bin gas boundary.
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Lower sealing valve
Lower sealing valve within the charging-bin sealing sequence.
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Distributing chute
Distributing chute for directing burden to the selected furnace region.
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Chute drive unit
Distributor / airtight box assembly for chute rotation and tilting.
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Hydraulic station
Hydraulic power and control arrangement for furnace-top actuation.
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Automation and control
Cabinets and operator console associated with the furnace-top control system.
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Equalization and venting valve
Valve for pressure equalization and venting of the charging bin.
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Chute replacement tool
Maintenance fixture for handling the distributing chute during replacement.
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TECHNOLOGY & SCOPE
Coordinate the charging system.
Each package needs to fit the process, site conditions and operating requirements.
01
Chute rotation & tilt
Coordinated rotation and inclination place the burden across the furnace top. The drive arrangement is selected for the specified system.
02
Material flow control
The material flow valve adjusts discharge to work with chute movement and the charging programme.
03
Charging patterns
Ring, spiral, sector and point charging can be organised through the selected motion and control arrangement.
04
Maintainable equipment
Wear protection, lubrication, cooling, sealing and chute replacement access are considered in the layout.
DEFINE THE DUTY
A useful enquiry
starts here.
Share the operating conditions and project interfaces so the equipment scope can be discussed clearly.
Send your requirements- Blast furnace volume and existing top arrangement
- Burden materials, batch size and charging rate
- Normal and upset top-gas pressure / temperature
- Hopper volumes, chute dimensions and charging patterns
- Available height, support loads and maintenance space
- Cooling, nitrogen, hydraulics and control interfaces
BEFORE YOU SPECIFY
Common questions.
Is a material gate also a gas sealing valve?
The functions are different. A material gate controls solids, while the sealing valve forms part of the gas-tight boundary. Their sequence and interlocks must be coordinated.
Which operating limits should be specified?
Normal operation and short-duration upset conditions must be defined separately, including the affected components, duration and cooling conditions.
LET’S TALK ABOUT YOUR PROJECT