อีเมล: [email protected]
Dolomite Crushing และ Glinding Mill
Listen up—I’ve watched too many plants lose money with bad dolomite setups. That rock destroys cheap gear. A smart dolomite crushing and grinding plant isn’t just nice to have; it’s a must. After visiting sites from Thailand to Texas, I’ll share how to dodge common errors. Whether you’re making farm lime or building gravel, these lessons learned will save you lost time and repair costs.

Components of Dolomite Crushing Plant
A smartly built dolomite crushing production line is your guarantee against downtime. A dolomite crushing production line typically includes a feeder, primary crusher, secondary crusher, vibrating screen, tertiary crusher, conveyor belt, and dust removal system.
Stage | Key Equipment | Purpose | Critical Specs |
---|---|---|---|
1. การให้อาหาร | Vibrating Grizzly Feeder | Removes dirt, controls rock flow | 10-15° incline, 50-100 TPH capacity |
2. Primary Crush | บดกราม | Smashes 24-48″ ก้อนหิน | 1,200mm feed opening, Mn steel liners |
3. Secondary Crush | เครื่องบดกรวย | Shapes 1-6″ รวม | Hydraulic adjustment, 200-300 RPM |
4. การคัดกรอง | Multi-Deck Vibrating Screen | Sorts sizes (oversize→re-crush) | 3-4 decks, polyurethane mesh |
5. Tertiary Crush | VSI Impact Crusher | Makes cubic sand for concrete | Rock-on-rock/anvil design |
6. Conveying | สายพานลำเลียง | Moves material between stages | 30-35° angle, dust-proof covers |
7. Dust Control | Baghouse Filters | Meets EPA air standards | 99.9% efficiency @ 10 microns |
Pro Tips:
- ตัวป้อน: Use stepped grizzlies to scalp clay – I’ve seen them boost throughput 18%.
- Crushers: SBM’s C6X Jaw Crusher handles 1,600mm feed – eats dolomite boulders like popcorn.
- สายพานลำเลียง: Slope ≤25° to reduce spillage (saves 5 hours/week cleanup).
- Nightmare Avoided: An Arizona plant skipped dust filters – got shut down for 3 weeks by EPA inspectors.
Composition of Dolomite Grinding Production Line
Converting gravel into powder? Your dolomite grinding line determines your profitability. It typically includes: vibrating screens, dryers, โรงงานลูกกลิ้งแนวตั้ง, air separators, pulse bag filters, storage units, ฯลฯ.
Stage | Equipment | Input → Output | Energy Use |
---|---|---|---|
1. Pre-Screening | Rotary Sieve | <30mm fines → <5mm grit | 7-10 กิโลวัตต์ |
2. Drying | Rotary Dryer | 15% moisture → 1% moisture | 850-1,000 kCal/kg |
3. Grinding | Vertical Roller Mill (VRM) | 5mm grit → 150-325 mesh powder | 18-22 kWh/t |
4. Classification | Turbine Air Separator | Separates fine/coarse powder | 3-5 กิโลวัตต์ |
5. Collection | Pulse Jet Bag Filter | Captures 99.99% of fines | 15-20 กิโลวัตต์ |
6. Silo Storage | Aerated Cement Silos | Prevents powder caking | Nitrogen injection |
Real-World Tweaks:
- Grinding Mill Choice:
- Need 80-200 ตาข่าย? → Raymond Mill (low cost)
- Need 200-400 ตาข่าย? → Ball Mill (handles moisture)
- Need 150-3,000 ตาข่าย? → VRM (40% less power) ← Top pick
- Critical Gear: SBM’s LUM Ultrafine Mill grinds to 2,500 mesh – perfect for premium fillers.
- Dust Killer: Add wet scrubbers if processing >500 T/day – saved a Philippines plant from community complaints.
- Cost Saver: Pre-drying with waste heat from crushers cuts fuel use by 60% (tested in Missouri).

Why This Flow Works?
Crushing → Grinding Synergy:
- Shared Conveyors reduce equipment costs
- Screening Fines skip primary grinding
- Central Dust Control cuts installation fees
Maintenance Red Flags
- 🚩 Crusher vibration >7mm/s → Bearing failure imminent
- 🚩 Mill pressure drop >6,500 Pa → Clogged filters
- 🚩 Powder moisture >1.5% → Dryer inefficiency
The Crushing Stage: Your Plant’s Foundation
Dolomite crushing requires a knockout punch. Here’s the battle-tested approach:
Stage | Equipment Type | Why It Works | Ideal Feed Size |
---|---|---|---|
Primary Crush | บดกราม | Handles boulders up to 48″ | < 60″ rocks |
รอง | เครื่องบดกรวย | Squeezes rock into uniform chunks | 6-12″ pieces |
Tertiary/Fines | เครื่องบดกระแทก | Shapes aggregates & ทราย | 1-4″ material |
Real Talk: Skip cone crushers? Expect jagged aggregate that asphalt plants reject. For hard dolomite, I trustSBM China’s HPT hydraulic cones – their auto-adjust mantles handle wear without stopping production.

Grinding Mills: Where Magic (Or Disaster) Happens
Dolomite grinding separates pros from amateurs. เป้าหมาย: Powder under 200 mesh for farming/industry. Top options:
- Raymond Roller Mill:
- Best for: 80-325 mesh powder
- ความจุ: 1-25 ไทย
- Watch: Overheat at >8% moisture
- Ball Mill:
- Best for: High-volume 200-400 ตาข่าย
- Power Hog: Uses 35% more energy than vertical mills
- Pro: Handles wet material
- Vertical Roller Mill (VRM):
- My Choice: 40% energy savings vs ball mills
- เหมาะสำหรับ: Large cement/steel plants
- Example: SBM’s LUM Series handles 50 t/h dolomite
Field Story: An Idaho plant cut power bills 30% switching from ball mills to VRMs. ROI came in 14 เดือน.
The Complete Processing Flow
Here’s how our client runs 500 t/day:
[เหมืองหิน] → (Blasted Rock) →
[บดกรามปฐมภูมิ] → (6″ รวม) →
[เครื่องบดกรวยรอง] → (1.5″ Gravel) →
[หน้าจอสั่น] →
│ → Oversize → Tertiary Crusher
│ → ¾” Aggregate → Stockpile
└ → <⅜” Fines → [VRM Grinding] → (200 Mesh Powder) → Silo
Essential Equipment Specs
Machine | Critical Specs for Dolomite | Maintenance Musts |
---|---|---|
บดกราม | 400+ RPM swing speed, Mn steel plates | Check plates every 40 operating hrs |
เครื่องบดกรวย | Hydraulic tramp release, auto-bowl | Monitor oil temp hourly |
VRM Grinder | 4+ ลูกกลิ้ง, nitrogen tension system | Laser-align rollers quarterly |
Cost Saver: Use SBM’sremotely monitored crushers – caught a bearing failure at 2AM before catastrophic damage.

Avoid These 5 Costly Plant Mistakes
- Undersized Feeders: Causes crusher jams (add 20% capacity buffer)
- Dry Grinding Wet Ore: Creates cement-like sludge
- Ignoring Dust Control: $50k EPA fines hurt
- Wrong Liner Material: Use chromium carbide, not standard steel
- No Spare Parts: Crusher downtime costs $5k/hour
When to Repair vs. Replace
Replace IF:
- Crusher > 100,000 hrs runtime
- Mill rollers scored >15mm deep
- Efficiency dropped >25%
Repair IF:
- Under 60,000 hrs
- Parts <30% of new unit cost
- Techs confirm frame integrity
Why This Isn’t Just “Another Rock Plant”
Dolomite’s toughness needs special care. But get your dolomite crushing and grinding plant right, and you’ll earn for years. I’ve seen sites triple production just by using modern grinders and self-operating crushers. Remember: Cheap machines end up costing more later. Insist on exact engineering – your profits depend on it.
Need setups made for dolomite? Check SBM China’s crushing/grinding gear built for tough rock work.
สำนักงานใหญ่
วอทส์แอพ:+8615225176731
อีเมล: [email protected]
ที่อยู่: เลขที่. 1688, ถนน Gaoke ตะวันออก, เขตผู่ตงใหม่, เซี่ยงไฮ้, จีน.
เว็บไซต์: https://www.mill-sbm.com/