Product Introduction:
1.Introduction of lime processing plant
We can provide technology solutions and complete calcined lime
plant for quicklime (active lime) production.
-Design capacity:50-700TPD
-We have professional engineer team.
-We have mature experience, and project cases more than 100 till
2011.
-Using the new type energy saving and environmental system, which
can reduce fuel consumption 40%, increase output capacity 30%.
2. Production process description of calcined lime plant
1.Raw material feeding
The limestone in the plant yard will be carried by tractor shovel
and feed to hopper, it will be discharged from hopper to vibrating
feeder and sent to vibrating screen for screening through belt
conveyor. The size ≥20mm will be sent to pre-heater by conveyor.
And size less < 20mm will be carried away.
2.Calcination
The limestone in the pre-heater will be preheated by the hot air,
then it will be discharged to rotary kiln though chute that
connecting pre-heater and kiln, it will stay in the kiln for 1.5-2
hours for calcination, during the process, it will be calcinated
with a temperature around 1300 °C, limestone decomposition, release
of CO2, become calcined lime. Then the lime moves to vertical
cooler for cooling.
3. Calcined lime conveying
Calcined lime will be discharged to a chain conveyor by vibrating
feeders in the bottom of vertical cooler, it will be lifted to
storage hopper by bucket elevator. So the lime in the storage
hopper for dispatch or hydration workshop.
4.Dust filtering .
There are two dust filtering systems, one is in the kiln inlet,
dust will be filtered by bag filter then the clean gas will release
to air. The other is dust from lime storage hopper and feeding of
bucket elevator will be filtered by bag filter then release to air.
3.The process advantage calcined lime plant
The calcined lime plant process adopts pre-heater+ rotary kiln+
vertical cooler system, , it can reduce the fuel consumption 40%,
increase output capacity 30% due to reuse the waste gas in the
system. The other advantages are in the following.
1.The lime quality is very good and high activity.
2.It is especially suitable for large-scale lime production.
3.The production running is stable, the whole process using
negative pressure, air flow freely and high production safety
4.Using the bag filter system, it can reduce the exhaust gas less
than 50mg/Nm3
5.It shorten kiln length, reduce heat loss and area.
6.Cooler and kiln hood cover designed together, good seal, saving
area.
4.The Flow diagram of calcined lime plant:
Scope of delivery and service:
- Feasibility study
- Creating of basic engineering
- Creating of construction (as-built documentation)
- Delivery of the complete production line equipment
- Delivery of automation system
- Delivery of electrical kits
- Delivery of Lab and test, engineering station for permanent quality monitoring
- Erection the entire plant on the prepared foundations.
- Taking in function (set and run up) of the entire plant.
- Training of customer's operating staff
- Hand over operating manuals and trouble shooting guide line
- One year full replacement warranty
The delivery does not include:
- Delivery and transport from the customer's harbour to the erecting place
- Civil work
- Any building work
- Grounding work
- Entire steel frame work