Analysis of technical parameters for coal crusher selection. For coal crushing needs with a processing capacity of 200 tons per hour and a discharge particle size of 2-3 cm, the following core parameters need to be considered:

1. Core parameter configuration

Capacity adaptation

For the processing capacity demand of 200t/h, it is recommended to adopt the "jaw crusher + tooth roller crusher" two-stage crushing solution:

Primary PE900×1200 jaw crusher (processing capacity 220-380t/h)

Secondary 2PGC1200×1500 double tooth roller crusher (processing capacity 180-220t/h) The actual capacity of the combined system can reach 210-230t/h, meeting the needs of fluctuating working conditions

Particle size control

2-3cm discharge is achieved by adjusting the tooth roller spacing (20-50mm stepless adjustable):

Equipped with a hydraulic adjustment device, with an adjustment accuracy of ±2mm

Discharge qualification rate ≥90% (based on GB/T3505-2019 standard)

2. Selection of key components

System module technical specifications Remarks Crushing tooth plate ZGMn13-4 high manganese steel, surface hardness HB220-240 Replaceable tooth crown design Drive system Dual motor power 2×160kW (including 15% margin) Frequency conversion start protection Dust removal system LPM-16 pulse bag dust collector Filter wind speed 0.8m/min

3. Operation guarantee measures

Pre-screening stage is equipped with heavy-duty vibrating screen (sieve hole 40mm) to reduce the crushing load by 15-20%

Adopt PLC intelligent control system, real-time monitoring:

Bearing temperature (alarm threshold 90℃)

Vibration amplitude (warning value 5.0mm/s)

It is recommended to detect the thickness of wear-resistant parts every 400 hours of operation (minimum allowable thickness 15mm)

Note: This plan is suitable for the crushing of bituminous coal with ash content ≤25% and moisture content ≤8%. Special coal quality needs to be verified separately.