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vacuum reclamation systems. This guide is designed to help you choose the best abrasive vacuum recovery system for your specific application.
When it comes to industrial blasting projects, efficient abrasive recovery is critical. Whether you're working on ship hulls, inside tanks, or bridge containments, you need a system that can handle the recovery of spent abrasive quickly and effectively. This is where ATHI vacuum Recovery Systems come into play. Designed specifically for blasting sites, these systems ensure that spent abrasives are collected at a central point, ready for recycling or disposal.
Vacuum method of collection and cleaning (regeneration) of abrasive
The vacuum method for collecting and regenerating abrasives is widely used in various applications of abrasive blasting. Typical set of equipment consists from vacuum unit (vacuum pump, industrial vacuum cleaner), the silo with integrated separator, suction and vacuum hoses, special suction nozzle for collecting of abrasive.
Vacuum abrasive recovery system can be used in combination with a scraper floor, when the abrasive is supplied from floor hopper to separation and accumulation due to air flow (vacuum) from industrial vacuum cleaner, as well as a standalone equipment for manual collection and cleaning of the abrasive (steel grit).
Vacuum system for the collection of spent abrasive is popular in the shipbuilding and ship repair, when need to collect abrasive after the blasting of tanks or ballast tanks of the vessel, and also at internal blasting works in the tanks (for example, oil refinery industry). Depending on the power of vacuum unit, suction hose length can reach up to 100 m, and cleaning productivity can reach several tons per hour.
ATHI offers customized of vacuum abrasive recovery system for possible use in the blasting booth equipped by scraper floor.
Sometimes, our client needs the blast room without a scraper floor, therefore, we can supply the vacuum abrasive recovery system for manual collecting of used abrasive. Such recovery systems haven't the conical hopper, but are equipped with a longer suction hose (up to 15 m) and special nozzles.
I. The equipment composition
The equipment consists of seven main components:
1. Silo (L2000mm x W1000mm x H3700mm) (Includes one silo, one ladder, two sand suction hoses, and one suction head)
2. Sandblasters (two units, L1000mm x W900mm x H1400mm x 2 sets) (Includes two sandblasters, two sandblast hoses, two nozzles, and two sandblasting suits)
3. Cyclones (two units, L1100mm x W700mm x H1300mm x 2 sets) (Includes two cyclones, two pcs Φ100mm x 3m suction hose)
4. Sand suction machines (two units, L1300mm x W700mm x H1500mm x 2 sets) (Includes two sand suction machine, two pcs Φ100mm x 3m sand suction hoses)
II. The sand suction machine technical parameter
| No. | Item | Parameter Specification |
| 1 | Power Supply | AC three-phase, 380V ±10%, 50Hz ±1 |
| 2 | Motor | 15kW × 2, IP55 Protection Class |
| 3 | Air Volume / Operating Noise | 22 m³/min; ≤ 85dB(A), high performance & low energy consumption |
| 4 | Sand Suction Capacity / Maximum Conveying Distance | 2-3 t/h; 6 meters vertically, 30 meters horizontally |
| 5 | Maximum Vacuum Degree | -0.04 MPa |
| 6 | Dust Collector Filter Area/Material/Filtration Efficiency/Specification | 33 m² / high-efficiency polyester synthetic fiber / 99.9% / Ø200 × 400 × 3 × 2 sets |
| 7 | Dust Emission Concentration of Dust Collector | ≤15 mg/m³ |
| 8 | Pulse Backflush Control | Automatic timed blowdown |
| 9 | Filter Cleaning System | Pulse backflush dust removal with external compressed air; backflush air pressure 5-7 kg/cm², backflush air volume 0.4 m³/min |
| 10 | Sand Suction Pipe Diameter & Length | Ø100 mm (10 m); Ø64 mm (20 m) |
| 11 | Air Intake Pipe Diameter | Ø100 mm |
III. The sand blasting machine technical parameter
| Item | Specification |
| Sand Tank Capacity | 0.26 m³ × 2 units |
| Air Source Pressure | 0.6-0.8 MPa |
| Working Pressure | 0.6-0.7 MPa |
| Nozzle Diameter | 10 mm |
| Pneumatic Sand Valve Opening Pressure | 0.4 MPa |
| Air Consumption per Unit | 6-8 m³/min (varies depending on nozzle diameter) |
| Sandblasting Area | 6-15 m³/h |
| Control Mode | Wireless Remote Control |
| Sandblasting Hose | 20 m × 2 units |
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