1. Work system
Filtration diatomite production line
Crushing - 8h/day, 5 days a week, 230 days a year
Acid leaching, filtering, washing, drying, calcining - 3×8h/day, 7 days a week, 350 days a year
Grinding, grading - 3×8h/day, 5 days a week, 230 days a year
Packaging, storage, shipment - 2×8h/day, 5 days a week, 230 days a year
Carrier diatomite production line
Crushing - 8h/day, 5 days a week, 230 days a year
Drying - 3×8h/day, 7 days a week, 350 days a year
Grinding, grading - 3×8h/day, 5 days a week, 230 days a year
Packaging, storage, shipment - 2×8h/day, 5 days a week, 230 days a year
2. Raw ore indicators
Specific gravity 0.7 to 0.9 T/m3,
Natural moisture = 10 to 30%, average value = 20%
Mohs hardness = 2-3
Chemical analysis:
SiO2 PAF | AI2o3 | Fe2O3 | CaO | MgO | Na2O | K2O | TiO2 | P2O5 |
|---|---|---|---|---|---|---|---|---|
51-80 7-12 | 0,1-6 0.1-6 | 0,4-4 0.4-4 | 6-16 | 1,7-2 1.7-2 | 0,3-1,6 0.3-1.6 | 0,4-0,5 0.4-0.5 | 0,1-0,2 0.1-0.2 | 0,1-0,2 0.1-0.2 |
3. Product Outline
Filtration of diatomaceous earth 25,000 tons/year
Specific gravity = 0.1 tons/m3
Natural moisture = 1.5%
Particle size: coarse material = 15-74μm, medium material = 10-15μm, fine material = 0-10μm
Chemical analysis average
SiO2 | AI2O3 | Fe2O3 | CaO | MgO | Na2O | K2O | TiO2 | PAF |
|---|---|---|---|---|---|---|---|---|
88,4 88.4 | 3,4 3.4 | 1,5 1.5 | 0,4 0.4 | 0,7 0.7 | 0,5 0.5 | 0,4 0.4 | 0,1 0.1 | 4 |
Carrier diatomaceous earth 25,000 tons/year
Specific gravity = 0.2-0.3 tons/m3
Natural moisture = -5%
Particle size: coarse material = 0-74μm, fine material = 0-10μm
Chemical composition
Si02 SiO2 | AI203 AI2O3 | Fe203 Fe2O3 | CaO | MgO | PAF |
|---|---|---|---|---|---|
58 | 3 | 1,5 1.5 | 13 | 2 | 12 |
4. Brief description of production process
Filtered diatomite production line
(1) Crushing
(2) Acid leaching and washing
(3) Drying
The filtered material (water content 30%) is conveyed to a rotary kiln (processing capacity 5t/h) by a conveyor for drying and calcining (temperature 700 to 1000℃), and then conveyed to an air cooler for cooling (temperature 250-300℃). The cooled material (water content 1.5%) is conveyed to the calcined diatomite storage bin.
(4) Grinding, grading, packaging
Carrier diatomite production line
(1) Crushing
(2) Drying
The crushed material (water content 20%) is conveyed to a rotary kiln (processing capacity 5t/h) by a belt conveyor for drying (dried to 5% moisture).
(3) Grinding, grading, packaging
