De-Stoner (Pressure Type)
A reliable solution when the removal of all stones, from almost any granular product, is required.
- Suitable for a wide variety of products
- Easy to clean, minimum maintenance
- Remove stones, metal etc., accurately and reliably
- Simple and fine adjustment for optimum performance
- Positive locking to maintain settings – giving consistency
The working principles of the destoner are shown in figure below. The basic principle of the destoner is to effectively separate ‘heavier than product’ debris such as glass, stones and metal from a large range of grains and oil seeds.
The separation process is relatively simple. This involves allowing dry granular material to flow over an inclined vibrating screen covered deck. Air from a pressure fan located within the body of the machine is forced up through the deck and through the bed of material.
The air flow holds the product in stratified flotation according to specific gravity differences whilst the reciprocating action of the deck separates the heavy material from the lighter grain or oil seed. Heavy product is discharged from the high end of the deck, entirely separate from the light particles (grains/oil seeds) which are discharged from the lower end.
Alvan Blanch destoners are remarkably fast and thorough when removing heavy material. They are constructed of heavy gauge steel and driven by a unique eccentric drive which is counterbalanced for years of trouble-free operation.
DS Series De-stoner Range and Specifications
|Capacity||Up to 2 t/hr||Up to 5 t/hr|
|Electric power||4 kW||4.5 kW|
|Length||1320 mm||1620 mm|
|Width||1270 mm||1562 mm|
|Height||1550 mm||1629 mm|
|Approximate weight||230 kg||540 kg|
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