Flammable and explosive media
Continuous solid-liquid separation where air ingress could create an explosive atmosphere.
Explosion-protected horizontal decanter
Explosion-Proof Gas-Tight Decanter Centrifuge
Continuous solid-liquid separation for flammable, explosive, toxic or hazardous media, with compensated gas-tight sealing and controlled micro-positive-pressure operation. Designed and manufactured for flammable and explosive media and toxic and hazardous media. Review the working principle, performance features and available configuration details below when specifying your industrial project.
- Continuous decanter separation for flammable, explosive, toxic and hazardous media.
- Automatically compensated gas-tight sealing supports controlled micro-positive-pressure operation.
- Selectable open, vapor-tight and gas-tight configurations for different containment requirements.
- Process
- Sedimentation in a gas-tight enclosure
- Operation
- Continuous
- Discharge
- Scroll discharge
- Model data
- Configuration confirmation required
Product Essentials
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Explosion-Proof Gas-Tight Decanter Centrifuge Technical Data
Technical specifications
Reference performance values for the four explosion-proof gas-tight decanter centrifuge configurations. Confirm material conditions and final configuration before selection.
| Model | Bowl diameter (mm) | L/D | Bowl speed (r/min) | Separation factor | Main motor power (kW) | Machine weight (kg) | Overall dimensions (mm) |
|---|---|---|---|---|---|---|---|
| Model 1 | 350 | 4.17 | 4000 | 3130 | 22–30 | 2200 | 3450 × 1010 × 1030 |
| Model 2 | 420 | 4 | 3600 | 3050 | 30–37 | 4200 | 3500 × 1450 × 1300 |
| Model 3 | 530 | 4 | 3000 | 2670 | 45–55 | 6220 | 4100 × 1600 × 1450 |
| Model 4 | 720 | 4 | 2000 | 1610 | 110 | 11000 | 5300 × 2050 × 1750 |
Source reference values. Final gas-tight sealing, explosion-protection scope, dimensions, materials and performance are confirmed during engineering.
Applications
Explosion-Proof Gas-Tight Decanter Centrifuge: industrial applications
Applications include flammable and explosive media and toxic and hazardous media. Confirm material properties and process conditions before selecting the equipment configuration.
Toxic and hazardous media
Processes requiring reduced operator and environmental exposure to harmful vapors or liquids.
Closed chemical processing
Production duties in which process gas must not escape to the surrounding environment.
Chemical and petrochemical
Continuous separation duties requiring containment, hazardous-area compatibility and reliable solids discharge.
Pharmaceutical production
Contained processing where product isolation, cleanability and controlled atmosphere are important.
Working Principle
From feed preparation to finished product.
The process route is selected around the material and product targets.
Continuous feed
Process slurry enters continuously through the feed system and is accelerated and distributed inside the rotating bowl.
Centrifugal sedimentation
The density difference causes solids to settle against the bowl wall while clarified liquid forms an inner layer.
Differential scroll conveying
The scroll rotates at a controlled differential speed and conveys settled solids toward the conical end for further dewatering.
Continuous phase discharge
Dewatered solids leave through the solids outlets while clarified liquid discharges from the opposite end.
Dynamic containment
The sealing and purge-gas systems maintain the specified enclosed condition throughout separation, limiting air ingress and process-vapor escape.
Performance Highlights
Process performance shaped around the product.
Final performance remains dependent on feed properties and engineering confirmation.
Hazardous-media containment
The controlled sealed space limits process leakage and external-air ingress during continuous separation.
Multiple sealing configurations
Open, vapor-tight and gas-tight arrangements allow the containment level to be matched to the medium and site conditions.
Continuous automatic operation
The machine supports continuous feed, separation, solids conveying and discharge with centralized process control.
Large L/D bowl
The extended settling length increases effective residence time and supports improved clarification and solid-liquid separation.
High-strength bowl
Centrifugally cast bowl components provide structural integrity and reliable high-speed operation.
Online pond-depth adjustment
A variable impeller can adjust the internal liquid level during operation as process conditions change.
CIP capability
Optional in-place cleaning reduces manual cleaning and supports hygiene-sensitive production.
Multiple safety protections
Purge pressure, machine condition and operating sequence can be supervised through project-specific monitoring and interlocks.
Long-life wear protection
Reinforced and replaceable wear components protect critical surfaces exposed to high-velocity solids.
System Configuration
Standard process path with project-specific options.
Core equipment and auxiliary systems are selected around the process duty.
Open seal
For general duties where process vapor release is not significant and complete atmospheric isolation of the bowl area is not required.
Vapor-tight seal
Reduces process-vapor dispersion where the medium may affect the workplace or should not contact the surrounding atmosphere directly.
Gas-tight seal
For inerted service with toxic, corrosive, flammable or explosive media; the sealed process space is maintained at controlled micro-positive pressure.
Automatically compensated sealing
The compensated seal maintains reliable dynamic containment as the machine operates.
Inert-gas protection
Purge-gas supply and pressure monitoring limit external-air ingress and support the specified safe internal atmosphere.
Hazardous-area design
Drive, instrumentation and electrical components are selected to suit the project's area classification and protection concept.
Variable impeller
An optional adjustable impeller changes pond depth during operation to optimize clarification, solids residence time, dewatering and throughput.
CIP system
An optional clean-in-place system supports internal washing with less manual dismantling.
Automatic control and interlocks
Centralized controls, monitoring and project-specific safety interlocks support stable continuous operation.
Wear protection
Wear-resistant protection can be applied to the feed, solids-conveying and discharge zones, with replaceable parts at high-wear locations.
Selection Support
What we need to confirm the final design.
Share the following process information for an efficient preliminary review.
Material name and feed formRequired capacity or batch sizeInitial and final moistureParticle or product requirementsHeat and chemical sensitivityBulk density, viscosity or flowabilityAvailable utilities and heat sourceContact material and site conditions
