ATEX-Certified Dual-Shaft Batch Mixer for Explosive Chemical Adhesives

ATEX-Certified Dual-Shaft Batch Mixer for Explosive Chemical Adhesives

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The Challenge: Safe Homogenisation of Highly Flammable Solvents
A manufacturer of high-performance chemical adhesives and conveyor belt bonding agents required a specialized blending solution. The process involved mixing aggressive solvents that are both chemically corrosive to standard rubbers and highly explosive. To ensure plant safety and regulatory compliance, the equipment required formal ATEX certification and a design that prevented mechanical friction-ignition while achieving perfect homogeneity.
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The Solution: TUV-Certified 45° Inclined Dual-Shaft Blender
We engineered a bespoke 500L Stainless Steel Double-Vessel Mixer designed for extreme hazardous environments:
  • Certified Explosion Protection: The entire unit received official ATEX certification from TUV Nord, ensuring all motors, sensors, and mechanical interfaces are safe for use with volatile solvents.
  • Chemical-Resistant Teflon (PTFE) Sealing: Standard rubber gaskets would dissolve in these solvents. We utilized high-grade Teflon gaskets throughout the assembly to ensure a leak-proof, maintenance-free seal that resists chemical melting.
  • Bi-Directional PLC Logic: To maximize mixing efficiency within the 45° inclined vessels, we installed a specialized PLC. This allows for automated clockwise and anti-clockwise rotation cycles, creating a high-energy fluid bed that ensures perfect additive dispersion.
  • Reinforced 316 Stainless Steel: The double-vessel construction provides the structural integrity needed for high-torque chemical blending.
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The Result: Secure, High-Performance Hazardous Mixing
The ATEX-certified dual-shaft mixer allowed the facility to automate a dangerous manual process. By providing a solvent-resistant, explosion-proof environment, our team ensured the plant meets all UK DSEAR safety standards while producing a superior quality adhesive for the global conveyor belt market.
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Dual-Shaft Paddle Mixer – Technical Specifications Table

Specification Technical Details
System Type Dual-Shaft / Double-Vessel Batch Mixer
Certification ATEX (TUV Nord Certified)
Batch Capacity 500 Litres
Inclination Angle 45 Degrees
Gasket Material Pure Teflon (PTFE) – Solvent Resistant
Control System Bi-Directional PLC (Clockwise/Anti-Clockwise)
Construction 316 Stainless Steel (High Chemical Resistance)
Application Chemical Adhesives, Solvents, & Flammable Liquids