Technical analysis of hammer crusher to achieve 0-3mm fine crushing and 10t/h production capacity

I. Equipment Overview

As the core equipment in the field of medium and fine crushing, hammer crusher uses high-speed rotating hammer to impact and crush materials. This machine adopts heavy-duty rotor design (speed 800-1200r/min) and adjustable grate gap (0-15mm adjustable), which can stably produce 0-3mm fine particles, especially suitable for processing medium hardness materials such as limestone and bluestone.

2. Key technical parameters

Crushing system:

Hammer material: high chromium alloy composite casting (HRC ≥ 62)

Rotor diameter: Φ800mm (standard 6-row hammer)

Feed particle size: ≤200mm (recommended ≤150mm)

Capacity control:

Theoretical capacity: 10t/h (calculated based on bulk density 1.6t/m³)

Motor power: 37kW (4-pole explosion-proof motor)

Grate bar gap: 3mm (replaceable grate plate adjustment)

Dust removal system: standard pulse bag dust collector (filtration area 24㎡), dust emission concentration <20mg/m³

3. Process advantages

Using the "stone-to-stone" crushing principle, hammer wear is reduced by 40%

Hydraulic opening device realizes rapid maintenance (opening time <15 minutes)

Intelligent control system monitors bearing temperature (alarm threshold 85℃) and vibration value (＞4mm/s automatic shutdown) in real time

4. Application cases

After a granite sand production line is equipped with this equipment:

Finished product qualification rate: 0-3mm accounts for 92.3%

Power consumption per ton: 1.8kW·h/t

Hammer head service life: 600 hours (processing capacity is about 6,000 tons)