Introduction of active lime rotary kiln production line:
Active lime production equipment----Lime production line is a
complete set of lime production equipment from feeding equipment,
screening equipment, conveying equipment, calcining equipment, dust
removal and unloading equipment. Rotary kiln calcined limestone
with preheater and vertical cooler meets the production
requirements of high efficiency, energy saving, environmental
protection and high activity. Successful industrial application of
vertical preheating of environmentally friendly and energy-saving
activated limestone. Due to the significant reduction in fuel
consumption and tail gas emissions, coupled with the use of pulse
bag dust collectors to purify tail gas, not only the production
cost and energy consumption are greatly reduced, but also the
emissions during the calcination process are up to standard, and
the environmental conditions are basically maintained.
Process flow of lime production line:
Step 1: The raw materials are crushed to a particle size between 10-40mm.
The raw materials are discharged from the hopper to the vibrating
feeder, and the raw materials <20mm are screened by the
vibrating screen and then sent to the preheater.
Step 2: Rotary kiln calcining lime. The limestone in the preheater is
preheated by hot air, and then discharged into the rotary kiln
through the chute connecting the preheater and the kiln, and stays
in the kiln for 1.5-2 hours for calcination. During this process,
calcined at temperatures around 1300°C, the limestone decomposes
and releases CO2 to complete the formation of quicklime.
Step 3: After the lime is cooled by the cooling equipment, it is
discharged from the vibrating feeder at the bottom to the chain
conveyor, and is lifted into lime in the storage hopper, which can
be used for scheduling or transported to the hydration workshop.
Step 4: Use two dust filter systems. One is at the mouth of the kiln.
After the dust is filtered by the bag filter, the clean gas is
discharged into the air. The other is the dust in the lime storage
hopper and the feeding part of the bucket elevator. The dust is
discharged into the air after being filtered by a cloth bag.
Main advantages of quicklime plant/lime production line
1. With good quality and high output, it is suitable for
large-scale activities and large-scale production of lime
production lines.
2. The production is stable, and all production adopts negative
pressure airflow, which is safer.
3. Simple structure, convenient control, convenient operation and
maintenance.
4. Fine-grade limestone can be calcined, making full use of mine
resources and reducing the loss of raw materials.
5. Low heat consumption per unit product. It is installed in the
superheater of the shaft kiln and adopts limestone with exhaust gas
temperature, which greatly reduces the fuel consumption.
6. It can make full use of industrial waste gas as the fuel for
burning lime to reduce costs.
7. The kiln head adopts a vertical cooler integrated kiln head
cover design. The construction area is small, the sealing
performance is good, and the unsystematic discharge of hot exhaust
gas is effectively avoided.
ZK is engaged in technology research and development, engineering
consulting, equipment debugging, engineering contracting and
related technical services in the fields of cement, building
materials, mining, environmental protection, metallurgy, chemical
equipment manufacturing and other fields. Welcome to visit our
company and production workshop, we sincerely look forward to
cooperating with you.
We will provide you with the most suitable product at the most
reasonable price. If you have any needs, please feel free to
contact us, we will reply you as soon as possible.
Specifications:
| Capacity | 200t/d | 225t/d | 250t/d | 300t/d | 400t/d | 500t/d | 600t/d | 800t/d |
| Preheater | Shape | Hexagon | Hexagon | Octagon | Octagon | Octagon | Decagon | Dodecagon | Dodecagon |
Qty. Of Top Silo | 6 | 6 | 8 | 8 | 8 | 10 | 12 | 12 |
| Qty. Of Hydraulic Pusher | 6 | 6 | 8 | 8 | 8 | 10 | 12 | 12 |
| Preheating Capacity (t) | 600 | 600 | 800 | 800 | 800 | 1000 | 1600 | 1600 |
| Rotary Kiln | Size | Φ2.8×42m | Φ3.0×50m | Φ3.2×50m | Φ3.3×55m | Φ3.6×55m | Φ3.8×58m | Φ4×60m | Φ4.3×56m |
| Slope | 3.50% | 3.50% | 3.50% | 3.50% | 3.50% | 3.50% | 3.50% | 3.50% |
Rotating Speed (r/min) | 0.3-1.8 | 0.3-1.8 | 0.3-1.8 | 0.3-1.8 | 0.3-1.8 | 0.3-1.8 | 0.3-1.8 | 0.3-1.8 |
Calcination Temperature (℃) | 1350 | 1350 | 1350 | 1350 | 1350 | 1350 | 1350 | 1350 |
| Cooler | Type | Vertical | Vertical | Vertical | Vertical | Vertical | Vertical | Vertical | Vertical |
| Qty Of Temperature Control Area | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
Qty. Of Wind Tower | 4+1 | 4+1 | 4+1 | 4+1 | 4+1 | 4+1 | 4+1 | 4+1 |
| Size(m) | 3.6×3.6 | 3.6×3.6 | 3.6×3.6 | 3.6×3.6 | 4.1×4.1 | 4.1×4.1 | 4.1×4.1 | 4.7×4.7 |
Output Temperature (℃) | ≤120 | ≤120 | ≤120 | ≤120 | ≤120 | ≤120 | ≤120 | ≤120 |
| Product Thermal Loss(kcal/kg) | 5500 | 5400 | 5400 | 5400 | 5400 | 5400 | 5400 | 5000 |
| Available Fuel | Coke oven gas, mixed gas, natural gas, coal powder, low heating
value coal gas |
