The sand reclamation system allows to recover the exhausted sand and to bring it back to the same quality of the virgin sands. This significantly reduces the consumption of raw materials and helps to limit the environmental impact of foundry. In fact, with this regeneration process it’s possible to recovery the sand of the casting system.
Sand Reclamation Plant
A sand reclamation plant is a facility or system designed to clean and reuse sand, primarily in metal casting foundries and construction industries. It removes impurities, such as binders, coatings, and contaminants, from used sand, restoring it to a reusable condition. This helps reduce waste, lower costs, and minimize the environmental impact of sand disposal.
Key Functions of a Sand Reclamation Plant
- Cooling & Crushing – Heated and lumpy sand from casting is cooled and broken down.
- Dust & Fines Removal – Fine particles and dust are separated to improve sand quality.
- Binder & Coating Removal – Chemical or thermal processes strip away residual binders (e.g., clay, resins).
- Classification & Sieving – Sand is graded to ensure uniform grain size.
How It Works
- Collection – Used sand is gathered from casting molds, cores, or construction sites.
- Processing – Sand undergoes mechanical, thermal, or wet treatment to remove impurities.
- Cooling & Screening – Reclaimed sand is cooled and sieved to achieve the required grain size.
- Storage & Reuse – The cleaned sand is stored and reintroduced into the production cycle.
Benefits of Sand Reclamation Plant
- Cost Savings – Reduces the need for new sand.
- Environmental Impact – Minimizes waste disposal and mining of raw sand.
- Improved Casting Quality – Clean, reclaimed sand ensures better mold strength and finish.
Application
- Foundries producing iron, steel, aluminum, and other metal castings.
- Used in both green sand (clay-bonded) and chemically bonded sand systems.
By reclaiming sand, foundries improve sustainability and operational efficiency while reducing costs.
Green Sand Reclamation Plant
Vibration conveyor, cast hanging conveyor, belt conveyor, magnetic separation machine, winding machine, hexagonal mesh, sand library, two-way cooling bed, hoisting machine, belt machine, boiling reclaimer, belt conveyor, hoist, discharger, belt machine, sand library, the disc feeder, belt conveyor, hoist, belt conveyor, exhaust ventilator, accessories, two-way feeder, screw feeder, accessories electronic scale sand mixing machine, belt machine, the disc feeder.
- Flask shaker
Exciting fore of vibration motor make the falling sand along the chute to the bucket machine, with advanced and reasonable structure, shakeout of high efficiency, smooth and steady, low noise. - Belt conveyor
This conveyor is a new type designed according to the special application of casting plant. It is mainly used for conveying the new sand, used sand, molding sand, coat and lime stone as well as the construction material, chemical industry and food processing for all granular or block shape material. - Vibratory crusher
S33 series vibratory crusher series is based on similar products designed to improve equipment used mainly for high-performance crusher sand resin sand broken pieces. It uses the principle of suspension vibration. vibration motor torque generated excitation to block sand the vibration of a certain law of vibration, through mutual collision and friction of the city of sand to achieve the purpose of crushing. - Bucket elevator
This machine is a vertical transferring machine which is applied in mechanical casting plant. It is mainly used for elevating the used sand, waste sand, new sand, cleaning iron shot, etc. Combined with the belt conveyor and other devices, we can design many kind of transferring system. The features are small external size, less volume and higher elevation level so that the layout drawing will be compact. - Centrifugal regenerator
The centrifugal machine adopts the principle of dry-process centrifugal regeneration. It is mainly used for used resin sand
regeneration. The used sand will be thrown to wear-resisting lining by the high speed rotating blade. And the inert cover on the surface of resin sand will be removed by the rub and collision process between the sand articles, blade and box. According to the process requirement, the process will be repeated for many times till the target achieved. - Stationary inertia shakeout machine
This series shakeout machine used in casting workshop manual, mechanization and semi-automatic model of small and medium-sized casting after casting sand, sand and sand box, casting part. After the separation of sand group further broken, and through the grid hole fall or vibration conveyor belt. According to the weight and sand box size of workpiece, can install two or four parallel. - Inertia vibrating conveyor
This series of products applicable to the block, granular materials delivery, often in casting workshop for new coke, limestone, sand, sand transport.It has compact structure, light weight, stable working, low noise, reliable use, etc.
This series of inertial vibrating conveyor with vibration motor, vibrator two type products, type “B”, products to vibration
motor.This machine hanging type, a type two installation type. - Dust collector
Dust the overall design philosophy for the effective removal of powder sand, clean operating environment, the effective protection of dust emissions. - Electric control system
PLC control, PLC of Mitsubishi or Omron products. The rest of the main electric components are domestic famous or joint venture products, generally uses Chint or Delixi product, all can be linked, each subsystem can be linked, single machine can be manually. All control cabinets, consoles and several control link button box, control cabinet for the centralized control, in indoor, console can be realized across all actions, button box for on-site maintenance and debugging. Several parts are unified and scattered, bring great convenience for operation, debugging.
Resin Sand Reclamation Plant
It is supplemented by falling sand, crushing, magnetic separation, cooling, conveying, and sand mixing equipment to form a complete set of resin sand recycling treatment equipment, which is mainly suitable for producing cast iron, cast steel, and total non-ferrous castings in the foundry.
The resin sand process uses low nitrogen, nitrogen-free furan resin or alkali phenolic resin as a binder, a curing agent as a hardener, and the sand mould at an average temperature. This process is advanced, the casting quality is high, and the used sand recovery rate is high.
The eddy current and scrubbing regeneration methods are mainly used to remove the inert film on the surface of the old sand, which has achieved the purpose of regeneration.
The above set of regeneration treatments is compact in structure and reasonable in design so that the regenerated sand is qualified.
Modeling enlarges the moulding area and saves the conveying volume of the moulding sand.
Deal with a top suction dedusting hood is adopted above the grid, and a mechanical rotary back-blown bag type dust removal is set for the primary dust source to ensure dust emission standards and JB9078-96 dust emission concentration standards.
Advanced Japanese original PLC programmable controller, automatic control, reliable interlocking protection system for each operating equipment, making the whole line easy to operate, monitor, restrict and fully protect.
Conclusion
Sand reclamation plant is a facility used to recover and reuse sand, particularly in metal casting foundries and construction industries. The goal is to reduce waste, lower costs, and minimize environmental impact by processing used sand to restore its original properties.
