The document discusses foundry sand reclamation. It explains that reclamation offers economic and environmental benefits by reducing purchase and freight costs of new sand and complying with regulations. The key steps in reclamation are shakeout, crushing, cooling, scrubbing, classification, and storage. There are four main types of reclamation: dry, wet, thermal, and combined wet and thermal. The thermal process is suitable for oil-bonded sands without clay and for non-ferrous foundries. Reclamation systems must effectively remove impurities, coatings, and fines to produce sand with uniform properties for casting.

1. Foundry Sand Reclamation
A Presentation by
Abhishek.V.Hukkerikar,

2. 1. Increased interest in reclamation in recent years.
2. Consistent & adequate supply.
3. Uniform properties & characteristics.
4. Delivery cost & delay in maintaining considerable
stock.

3. Background
• Economical
Increase !! (40% in Purchase & 125% in freight)
• Environmental
Federal regulations & Chemical Composition of
sand
• Technical
Pre- coated with resin & catalyst & strong grains

4. Requirements of SR Systems
• It should remove lumps.
• Removal of magnetic & non magnetic impurities.
• Removal of inert organic material.
• Good grain distribution.
• It should give casting a good finish & appearance.
• Removal of fines.
• Removal of coatings to a uniform level.

5. Shakeout
Crushing
Cooling
ScrubbingClassification
Storage &
mould making
Metal Pouring
Basic Steps

6. Types of Reclamation
1. Dry reclamation
-No restoration of original quality
-Does not remove the organic matter
completely
2. Wet reclamation
-Partly removes coating
-Partly removes organic matter
3. Thermal reclamation
-Suitable for oil bonded sands with no clay
-Suitable for non-ferrous foundries (Core
molding)
4.Combined wet + thermal reclamation
-Restores original quality
-Removes organic matter completely

7. The Process
Shakeout
Bucket
conveyor
RD1 FBCT1
RD2 FBCT2
CT
To Reclaimed sand silo

8. The Process

9. Advantages
• Offers economic utilization
• Self sufficiency
• No freight charge & delay
• No necessity of bulk inventory
• Character specific

10. Thank you for your Patience
Any Questions??