Coal handling plant
According to see the diagram various stages of coal handling
where to deliver the coal to boiler. It depend on type of plant, load factor
and load capacity .some of the inter mediate steps may be eliminate.
2. Unloading
3. Preparation
4. Transfer
5. Outdoor storage
6. Covered storage
7. In plant handling
1. Delivery of coal
The coal is delivered by the sea/river, rail or road. Selection
of proper method of all supply from the coal mines to the power station depends
on the system capacity and transfer location of the plant with respect to rail
or water facilities available and location of available outside storage.
2. Unloading
In this steps unloading the choice of equipment will depend
on the how the coal is receive
3. Preparation
Preparation of coal before feeding to the combustion chamber
becomes necessary only if UN sized . A coal preparation plant may include the
following equipment. In coal handling plant
Preparation equipment
Crusher
Seizers, Dryers, magnetic separators
4. Transfer
This means carry in coal from unloading point to the storage
size from where it is discharge to the firing equipment. it may require more than one equipment depending on the
local condition. Equipment used for this purpose may be as following
1. Belt conveyor
2. Screw
3. Bucket element
4. Flight conveyor
5. Outdoor storage
The coal storage needed for two essential reasons.
1. It is an insurance against complete shutdown of a power
plant which may arise from failure of normal coal delivery.
2. Second reasons for coal storage is that advantage can be
taken of seasonal market condition. This means that when prices are law can be
purchased or stored for future used. Amount of coal to be started depends on available
for storage. Transportation facilities and nearness of the power plant to coal mines.
6. Covered storage
Such storage consist coal requirements of the plant for a
day.
6. In plant handling
This refers to handling of coal between the final storage to
the wiring equipment . the pulverized fuel firing system would require equipment.
Such as pulverized mills, feeders weighing
equipment and many other for in plant handling
7. Weighing, handing
It is necessary to wate coal at unloading point and also
that used at feet to the individual boilers. A correct measurement of coal enable
one to have an idea of total quantity of coal delivered at site and also
whether or not proper quantity has been
burn as per load on the plant and this can be perform by using belt scale
automatic recording system.
Hence by follow of above steps coal deliver for furring. if any in correct you find above pleas
comeent below