Plowshare mixer WBHT

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Overview
Fast product discharge and near-zero residuals. The WBHT batch single-shaft industrial mixer adds a full-length bomb-bay (60° opening) outlet to standard WBH features, enabling product residue typically below 0.1% depending on the material. A bomb-bay discharge is recommended where emptying time must be minimised.

Technical description
The WBHT mixer consists of a cylindrical mixing drum with an inlet, a pneumatically or hydraulically operated full-length outlet flap (bomb-bay), a venting spout and a full-material horizontal mixing shaft. The drum is closed by two end plates fitted with flanged end-bearing assemblies and air- or gas-purged shaft seals (or grease seals as option). A drive unit with power transmission provides the required torque and speed control.

Function
The 60° bomb-bay full-length outlet ensures rapid, near-complete product discharge, reducing downtime between batches and minimising residual material. The internal ploughshare or inclined-blade mixing tools create continuous turbulence to engage all particles and avoid dead zones. Optional high-speed choppers can be used for enhanced dispersion when required.

Features

• Capacity: 165 – 20,000 litres per batch
• Mixing ratio: up to 1/100,000
• Variation Coefficient (CV): typically 3–5%
• Liquid addition: up to 20% by weight
• End bearing assemblies: flanged assemblies with air- or nitrogen-purged shaft seals or grease seals
• Mixing chamber materials: carbon steel, anti-wear steel, 304L/316L stainless steel
• Stainless-steel surface finishes: grit silking, mirror polishing, glass-bead blasting
• Mixing tools: boxed ploughshare, toothed ploughshare, blade, toothed blade; optional anti-wear coatings

Benefits

• Very short mixing times (typ. 1–4 min)
• High mixing homogeneity
• Excellent batch reproducibility
• Gentle mixing that preserves product integrity
• Low maintenance and long service life
• Optimised power rating for application needs
• Easy cleaning and full internal access for maintenance and product changeovers
• Proven mixing technology with available test facilities

Options

• Advanced wear protection: anti-wear liner, replaceable wear tiles, ceramic liner, Teflon liner, stainless-steel mesh
• High-speed choppers for improved dispersion
• Liquid injection system for uniform liquid distribution
• Pneumatic sampling device for in-process quality control
• Pneumatic control panel for automation and precise operation
• Heating/cooling jacketed mixing chamber for temperature-sensitive processes
• PT100 temperature probe for chamber monitoring

Technical specifications

• Capacity range: 165 – 20,000 L (per batch)
• Mixing accuracy: mixing ratio up to 1/100,000; CV 3–5%
• Typical mixing time: 1–4 minutes (application dependent)
• Maximum liquid addition: up to 20%
• Materials of construction: carbon steel, anti-wear steel, 304L/316L stainless steel
• Surface finishes (stainless steel): grit silking, mirror polishing, glass-bead blasting
• Mixing tools: boxed ploughshare, toothed ploughshare, blade, toothed blade; optional anti-wear coating
• End bearings and seals: flanged end-bearing assemblies with air-/gas-purged shaft seals or grease sealing
• Discharge: full-length bomb-bay outlet flap (pneumatic or hydraulic) enabling residue <0.1%
• Optional equipment: high-speed choppers, liquid injection, jacketed chamber, PT100 probe, pneumatic sampling and control systems