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Mechanical Recovery Blast Room
Product Description:
A mechanical recovery blast room is a walk-in blasting chamber in which a scraper conveyor along the floor carries spent abrasive to a bucket elevator, which lifts it to a separator for cleaning and return to the blast pot. The room is built around the workpiece, not a model list: chamber dimensions, gun count, recovery layout and dust-collection airflow are all set from the part drawing. It cleans and profiles structural steel to Sa 2½ (ISO 8501-1) at the pressure and abrasive grade agreed on a sample part. It is not a shot blasting machine, not a continuous pass-through machine, and not a shot peening cell.
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Product Description
Key Features:
1. Mechanical Abrasive Collection
Utilizes mechanical energy to collect and recycle abrasives, offering flexibility in abrasive selection and high processing efficiency.
2. Two-Stage Dust Removal
Equipped with a two-stage dust removal system, achieving an impressive dust removal efficiency of over 99.99%.
3. Air Volume Adjustment Device
Features an air volume adjustment system that balances collected sand, preventing it from entering the dust collector. This reduces abrasive loss and ensures optimal dust removal performance.
FAQ
Q: Is the recovery scraper or screw type?
A: This page covers scraper (drag-flight) recovery: steel flights in a floor trench move abrasive along the chamber to a bucket elevator at the discharge end. Where the chamber is narrow or short, a screw conveyor is used instead. Both are mechanical recovery; they differ in the conveying element and in the maintenance routine, and the choice is fixed by chamber geometry and abrasive tonnage and stated on the quotation.
Q: What is the largest workpiece, and what happens above it?
A: There is no catalogue ceiling; the chamber is sized from the largest workpiece envelope plus operator clearance and gun stand-off. The practical limits are transport and workshop access — sections are sized to pass a 2,340 mm by 2,580 mm container door, and oversized sections are jointed on a project basis. The design inputs are drawings of the largest and smallest workpiece, the target grade, and the required throughput per shift.
Q: Can it replace a roller conveyor machine for continuous production?
A: No. A blast room works in batches — the workpiece is loaded, the doors closed, the part blasted, the doors opened — which suits large, single-piece and awkward geometry. Continuous throughput needs a roller conveyor or wire mesh belt machine, where the conveyor carries the work through the blast zone and the cycle is set by conveyor speed. The room also does not clean the inside of a closed vessel; that needs a separate internal-surface machine.
Q: What emission standard does the exhaust meet?
A: Two-stage separation followed by filtered exhaust, with a cartridge-type or bag-type dust collector sized on chamber volume and on the air changes needed to hold negative pressure with the door open. The emission limit follows the destination country's regulation and is confirmed per project; where no local figure is supplied, the room is designed to 60 mg/m³ and that figure is written into the technical agreement. It is a design value, not a third-party test result.
Q: Know more about general terms (Warranty, Lead Time, After-sales services, Payment terms, Guiding, Training, etc.)
A: Please check the FAQs on About us.
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