Blasting Rooms Purpose Built for Optimum Blasting Performance
DESIGN AND CONSTRUCTION OF BLAST ROOMS
To ensure a high production and low maintenance from Blast Rooms, it is essential they are carefully designed. Walls should be constructed with 5mm steel plate suitably stiffened to prevent buckling. All interior surfaces should be free form any protrusion inside the chamber to avoid collecting dust and abrasive.
Lighting is of paramount importance to provide suffi cient visibility levels for the operator to easily see inside angles, corners, cleats or around complex fabricated items. Lights should never be mounted inside a Blast Room.
Doors should be open to allow full access to the Room to utilize the entire size of the chamber. Floor grating and the associated support structure should be engineered to handle the loading levels necessary. Typically 50 tonne loadings are easily accommodated RECOVERY SYSTEMS
Recovery Systems range from 100% area under-fl oor systems to simple sweepin 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 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 effi cient under floor recovery requirements.
WHY INSTALL A BLAST ROOM?
There are several advantages of installing a Blast Room, both economical 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 customers deadlines. The controlled environment assists your blaster to achieve a consistent quality of work, reducing rework.
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!
BLASTROOM DUST COLLECTORS
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. 
MAIN FEATURES OF A PERFORMANCE BLAST ROOM
There are 5 main components in a Performance Blasting Chamber.
- The Chamber itself which includes lights, rugged doors and is normally lined with 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. An 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.
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