How wood pellets are made

Writing task 1
The diagram below explains the process of making wood pellets, used to heat buildings
Summarize the information by selecting and reporting the main feature, and make comparisons where relevant.
How wood pellets are made

Sawdust arrives from sawmill



Sawdust is hammered into fibers of uniform length in a hammer mill



Fibers are dampened with steam



Fibers are forced through holes in a pellet machine, forming into pellets





Pellets are cooled





Loose dust is vacuumed off



Pellets are packed into 18 kilo (40 pound bags) for sale

Wood pellets manufactured by this process are suitable for use in both pellet stoves and pellet furnaces.

Answer
Wood pellets are a type of fuel used for heating buildings. They are made from sawdust. The manufacturing process takes several steps and used several different type of machines.
The first machine that is used is the hammer mill. When the sawdust arrives from the sawmill, it is put into the hammer mill. There, the sawdust is hammered into fibers. The fibers are all the same length. The fibers are then dampened with steam, and they are ready for the next machine. It is called the pellet machine. This machine forms the damp fibers into pellets by forcing then through holes.
After the pellets come out of the machine, they are cooled. The cool pellets are vacuumed to remove the loose dust. Finally, the finished pellets are packed into 18- kilo (40-pound) bags. They are then ready for sale. They can be burned in either a pellet stove or a pellet furnace to heat any kind of building.
(158 words)
My own answer
The diagram shows how to make wood pellets for heating buildings. The manufacturing process consist on 7 steps and used different type of machine. They are beginning from sawdust arrives from sawmill to packed into bags.
First of all, when sawdust arrives from sawmill, it is put into hammered mill. The sawdust hammered into fibers. All fibers are the same length. Then the fibers ate dampened with steam and it will be ready the next step. The next step is that fibers are forced through holes in a pellet machines, for forming in to pellets.
After the pellets come out of the machine, they are cooled. The cool pellets are vacuumed to remove the loose dust. Finally, the finished pellets are packed into 18- kilo (40-pound) bags. They are then ready for sale. They can be burned in either a pellet stove or a pellet furnace to heat any kind of building.
(152 words)