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There are several advantages of installing a Blast Room, both economic and environmental. Weather constraints are no longer a problem. You can blast 24 hours per day, 365 days a year allowing you to achieve higher productivity and meet your customer’s deadlines. The controlled environment assists your blaster to achieve a consistent quality of work, reducing re-work.
Typically, Blast Rooms will incorporate an automatic abrasive recycling system which allows the use of recyclable abrasives, reducing your costs drastically. Not only do you reduce purchase costs of abrasive, you also reduce handling and disposal costs. By containing all your dust from your blasting operation, your general site environment is cleaner and tidier and your neighbors are happier too!
The chamber itself which includes lights, rugged doors and normally a line heavy duty steel plate on all surfaces to resist abrasion from ricochet. The room must also have correctly sized air entry and exit plenums for efficient ventilation without allowing abrasive to escape.
The Dust Collection and Ventilation system provides sufficient airflow in the Blast Room to keep dust levels low, increase operator visibility and to quickly clear the room of dust when blasting ceases.
An Abrasive Recovery System - normally under-floor - conveys the spent abrasive to a central point for recycling and cleaning. And efficient recovery system will collect automatically from 100% of the floor area or just from part of the floor requiring operators to sweep abrasive to the system.
The Abrasive Recycling and Cleaning Unit will clean the used abrasive by separating all dusts, fines, paint flakes and trash from the good reusable abrasive. The abrasive is then stored ready to be used again.
Blasting Pots, Hoses and Nozzles are selected to suit the Blast Room function. Typically multiple outlets are installed to allow more than one operator to blast continuously.
Recovery Systems range from 100% area under-floor systems to simple sweeping hopper systems. A Recovery System that has 100% floor recovery allows maximum productivity as operators never need be involved in handling spent abrasive. [An alternative to this is a 25% or 50% floor area recovery system that requires daily operator sweeping to recycle all abrasives].
When the spent abrasive falls through the floor grating, it is collected by a conveyor, typically a screw conveyor or an oscillating tray conveyor - which transports the abrasive across to a bucket elevator and Abrasive Cleaning Station. Oscillating Tray Conveyors are a reliable self-cleaning low maintenance and low profile solution to efficient under floor recovery requirements.
Recovery can be achieved using
either a "Shovel-In" Hopper....
....or a "Sweep-In" Style Hopper.
A Dust Collector is a vital part of any Blast Chamber. It provides ventilation inside the chamber and it cleans contaminants from the exhaust air. It is essential that the Dust Collector is carefully selected to suit the size of the Blast Chamber, to maintain visibility and required air velocity in the room.
In general, the larger the cross section of the Blast Chamber, the larger the Dust Collector. Blast-One can assist in all design and engineering calculations. A Dry Cartridge Collector offers high efficiency dust filtration . Dust is trapped on specially designed cartridges which are automatically cleaned by a Smart Pulse™ cleaning system. Dust is collected in bins for easy disposal.
Dust Collectors can be added
to existing Blast Rooms.
Poor ventilation means poor visibility.
Adding a Dust Collector will improve
your visibility and make it safer!
Call Blast-One for more Blast Room design information.