The picture illustrates the procedure for producing construction bricks from clay, sand and water through ten rather simple stages. It commences when raw clay is dug using a digger machine following which it is sifted through a metal grid into finer fragments which then fall onto a conveyor belt. In the next stage, water and sand are added and the resulting mixture is either pushed through a frame and cut into simple bricks, or is moulded into specially-formed bricks. These are then placed in a special oven for two to three days in order to minimise their moisture content. The following three stages involve the use of a couple of kilns and a cooling chamber: bricks are first heated moderately in the first kiln to reach a temperature of between 200 and 980 degrees centigrade before being subjected to higher temperatures (870 to 1300 degrees) in the second one. Next, they are allowed to cool down for two to three days in the cooling chamber. The process ends with the bricks being packed on pallets and delivered to end users on trucks.
The picture illustrates the procedure for producing construction
bricks
from clay, sand and water through ten
rather
simple stages. It commences when raw clay
is dug
using a digger machine following which it
is sifted
through a metal grid into finer fragments which then fall onto a conveyor belt. In the
next
stage, water and sand are
added
and the resulting mixture is either pushed through a frame and
cut
into simple
bricks
, or is
moulded
into
specially
-formed
bricks
. These are then placed in a special oven for two to three days in order to
minimise
their moisture content. The following three stages involve the
use
of a couple of kilns and a cooling chamber:
bricks
are
first
heated
moderately
in the
first
kiln to reach a temperature of between 200 and 980 degrees centigrade
before
being subjected
to higher temperatures (870 to 1300 degrees) in the second one.
Next
, they are
allowed
to cool down for two to three days in the cooling chamber. The process ends with the
bricks
being packed
on pallets and delivered to
end
users on trucks.