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COMATEC

Industrial automated COMATEC Solids Big Bag receiving, handling, opening and discharge station for dry bulk solids.

The system was designed to reduce manual handling of the bags. The operator places the full Big Bag in the loading area and attaches its lifting loops to the lifting crossbeam. The subsequent lifting, travel and positioning operations are carried out automatically by programmable electric hoists.

The installation incorporates a double gantry-type supporting structure equipped with two VICINAY electric wire-rope hoists, each with a lifting capacity of 1,600 kg. The hoists are fitted with electric travelling trolleys and numerically controlled positioning. Each hoist has a 3 kW lifting motor and a 0.55 kW travelling motor, with an approximate lifting speed range of 1.8 to 14.5 m/min.

Once positioned above the receiving station, the Big Bag is opened from the bottom by means of a removable and replaceable knife system, allowing rapid product discharge. The material then passes through a COMATEC DRG-300 lump breaker, a K-900-DC circular vibrating screener and a 2,000-litre buffer hopper. From the hopper, the product is metered by means of a tubular screw feeder.
The system was originally designed for handling PTA powder, with an apparent bulk density of approximately 0.9-1 kg/dm³. It may also be suitable for other dry powders or granular products, subject to verification of product compatibility, material construction, ATEX classification and the required filtration and discharge arrangements.

Main components
• Double gantry structure for Big Bag handling.
• Two VICINAY 1.6 t electric hoists.
• Electrically driven travelling trolleys.
• Programmable automatic positioning.
• Big Bag lifting crossbeams.
• Removable knife system for rapid bag opening.
• COMATEC DRG-300 lump breaker.
• K-900-DC circular vibrating screener.
• 2,000-litre buffer hopper.
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• Tubular screw feeder.
• Maintenance platform with open-grid flooring and safety railings.
• Level instrumentation.
• Associated pneumatic and electrical components.
• Carbon-steel support structure.