Importance of Sand Reclamation in Foundry Industry

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??