function: intermediate particle size control between secondary and tertiary crushing (usually set between cone crusher and vertical shaft crusher)
Process function: ensure that the material entering the third stage of crushing is ≤50mm, and improve the final crushing efficiency by more than 30%
2.core specifications
models:
HZM: heavy-duty vibrating screen (H heavy, Z vibration, M modular)
PS2·3: dedicated for secondary and tertiary crushing rooms (PPrimary, SSecondary)
Screen surface specifications: Width: 2400mm (can handle large flow materials)
Length: 6000mm (increase material residence time)
Grading particle size: 30/50mm dual-channel adjustable (hydraulic fast switching)
3.Structural innovation
Multi-layer composite screen:
Upper layer: bar screen (spacing 50mm, high manganese steel material,life 12-18 months)
Lower layer: rubber spring screen plate (aperture 30mm, anti-blocking design)
Dual-mass vibration system: Main vibration motor: 2×22kW (frequency conversion control, exciting force 2×160kN)
Auxiliary frequency modulation device: hydraulic pulse vibrator (to solve the problem of sticky and wet material blocking)
4. Performance parameters
index
Parameter range
processing capacity
800-1200t/h (iron ore density condition)
screening efficiency
≥ 92% (30mm grading point)
Upper limit of material moisture content
8% (when mud content ≤ 5%)
Equipment dynamic load
≤ 180kN (damping efficiency>85%)
noise level
≤ 78dB (A) (with soundproof cover)
5. Intelligent control system
Multi-parameter coordinated adjustment:
Automatically adjust the feeding speed according to the crusher power feedback Blockage identification (laser matrix monitoring + air pressure back blowing to clear blockage)
3Dmaterial flow analysis:
Configure TOF camera to monitor the uniformity of material distribution in real time. Automatically correct the inclination of the screen
Oil mist lubrication+ temperature and vibration dual monitoring Oil mist lubrication+ temperature and vibration dual monitoring
7.Installation benchmark requirements
Foundation levelness: ≤0.5mm/m
Pre-embedded parts pull-out strength: ≥300kN
Maintenance space: ≥1.5m on both sides,≥2m on the top
Ore dressing plant application case
Three-stage crushing transformation of an iron ore:
Original process: The discharge of the cone crusher directly enters the vertical shaft crusher
Current process: Add HZMPS-2·3 interstage screen
Effect: The power consumption of the vertical shaft crusher is reduced by 22%
The proportion of 50mm products is increased from 83% to 91%
The liner replacement cycle is extended by 40%
Special maintenance tips
1.Daily inspection:
Bar screen fastening bolts (torque value 320N·m)
Hydraulic oil level (setting of liquid level sensor alarm threshold)
2. Intelligent early warning:
Vibration spectrum analysis system predicts bearing failure 37 days in advance
Screen wear AI identification (determine replacement timing through image analysis) (Note: the screen inclination and vibration parameters need to be adjusted in accordance with the specific crusher model (such as HP500/HPT300))
