A VSI (Vertical Shaft Impressor) crusher is a type of impact crusher used for tertiary or quaternary crushing in aggregate production and mining. Below is a detailed explanation of its design, working principle, and specifications, along with a simplified drawing representation.
—
1. Working Principle of VSI Crusher
– Material is fed into the center rotor spinning at high speed.
– The rotor accelerates the material outward toward the anvil ring (or rock shelf).
– Impact between particles and the crushing chamber walls causes fracture (rock-on-rock or rock-on-metal crushing).
– Adjustable cascading flow controls particle size.
—
2. Key Components of a VSI Crusher
1. Rotor Assembly – High-speed rotating component with wear-resistant tips.
2. Crushing Chamber – Enclosed space where rock impacts occur.
3. Anvil Ring/Rock Shelf – Stationary surface for secondary impact.
4. Feed Hopper – Directs material into the rotor.
5. Motor & Drive System – Powers the rotor (electric or diesel).
6. Adjustable Cascade Baffles – Controls material flow for desired output size.
—
3. Simplified Drawing Representation
Here’s a basic sketch description (visualize as a side view):
“`
_______________
| Feed Hopper |
|_______↓________|
|
_______↓_______
| Rotor | ← Spins at high speed
| (Wear Tips) |
|_______↓_______|
|
___↓___↓___↓___
| Crushing |
| Chamber | ← Rock impacts here
|_______________|
|
_______↓_______
| Discharge .jpg)
|
| Conveyor/Chute|
|_______________|
“`
—
4. Technical Specifications
Typical VSI crusher specs vary by model but include:
| Parameter | Typical Range |
|——————–|—————————–|
| Rotor Diameter | 500–1500 mm |
| Max Feed Size | 50–100 mm |
| Capacity | 50–500 TPH |
| Motor Power | 75–500 kW |
| Speed | 1200–2500 RPM |
| Output Size | 0–20 mm (adjustable) |
Popular models:
Leave a Reply