J.Reid Engineering offer a well designed range of abrasive recovery systems to suit most applications.
Equipment used in our own rooms can be purchased separately and added onto existing blast rooms, increasing productivity and reducing running costs.
The purpose of the recovery system is to:-
- Transport the used abrasive back to the blast machine or storage hopper
- Clean and grade the contaminated abrasive
- Provide additional abrasive storage depending on system requirements.
Steel abrasive can be recycled hundreds of times when recovered and cleaned, ensuring high production, less wear, less dust and not forgetting, cost savings.
Our experience has proven that screw conveyors provide the most economic and reliable method of underfloor recovery, for longer life, ease of maintenance and efficiency.
We can offer a variety of recover floors from a simple in ground gravity hopper feeding a belt and bucket elevator to high production full floor screw conveyor systems. The options are unlimited.
Sweep in recovery is our basic economical design, which are available in various sizes.
Single screw partial recovery systems utilises a cross screw to feed the elevator system, reducing operator input.
Belt and bucket elevator
This is a tried and tested design comprising of a purpose built fabrication housing a low stretch endless belt. Buckets fitted to this belt transport the contaminated abrasive in to the airwash unit for cleaning. The buckets are fastened to the belt by means of large headed bucket bolts to help distribute the load.
Heavy duty crown faced pulleys supported by self-aligning sealed bearing, ensure constant belt tracking.
The belt is easily adjust from the elevator head to provide constant tracking and belt tension.
Drive is by means of a standard shaft mounted geared motor unit which eliminating chain drives and chain adjustment.
Abrasive airwash unit
One of the most important parts of the blast cleaning process is the airwash unit.
The purpose of the airwash is three fold
- Removes the contaminates form the working abrasive mix
- Controls the size of the abrasive in the working mix
- Controls the consumption of abrasive by controlling the size of abrasive removed from the system.
This is all accomplished by drawing air through a falling curtain of abrasive. The required air currents are produced by the dedicated dust extraction system.
The air currents carrying the fines and dust enter an expansion chamber or drop box. The velocity drops and the air currents loose their capacity to carry the contaminants from the abrasive stream. Fines material pass down a flexible pipe to ground level for collection and disposal by the client. Lighter dust is drawn down the ductwork to the extraction system.
The clean abrasive is then transferred to the storage hopper in the lower portion of the unit. The capacity of the hopper and number of outlets is dependant upon the customers requirements.
With the introduction of a powered rotary sieve fitted above the airwash, course contaminants are removed and transported to ground by a flexible pipe.
Drive for the rotating sieve would be accomplished by a directly coupled geared motor unit.
Abrasive recovery hoppers
In high production environments screw conveyors can be incorporated into the floor of a blast room to reduce the time it takes to sweep up into the recovery hoppers.
Multiple hopper arrangements ensure the abrasive is automatically recovered and recycled without operator intervention.
The hoppers are of a bolted and welded construction, with heavy duty screw conveyors, suitably supported by self lubricated sealed bearings. Above each screw is a removable surge plate providing protection and overloading of the screw conveyor. Drive is provided by a direct coupled geared motor unit. Open mesh flooring provides a safe working surface for the operator.