High quality and desirable in all coal-consuming countries in the world, especially the Arab countries surrounding
Coal production is the way the Egyptian in the same way since time immemorial, which is simply to close the timber within the deep hole in the ground about 150 cm
And the length of the hole from 5 to 10 meters depending on the size and productivity viewed from the side larger than the width with the opposite side exits out of the depth of the hole. At altitudes of about two meters to regulate the proper ventilation
Good Quality Specifications
There are many factors that determine the quality of coal produced by any method of production and these factors are:
The quality of wood used
Where the type of wood of great importance to quality and since time immemorial known Egyptian farmers this information example, in the Egypt and the Arab countries prefer coal output of the wood of citrus trees such as trees, oranges, guavas, mangoes, olives are the best species for the production of coal well and this is due to components Alsellioz the main component of wood and the varying rates of absorption of the components of soil
The percentage of carbon
Temperatue is of great importance in high quality coal product and the higher the temperature of 400°C is said the quality of coal output in low carbon is the main ingredient of coal quality
The percentage of moisture in coal
It is also to the quality of coal, the more I Madt humidity quality
The amount of ash and color
Determined and also the main component of wood used and the amount of salts and components that permeate the cellulose
The volume of coal
Resulting from the coal industry and circulation and a shift from one place to another result in breaking a significant proportion of coal, which is not fit for use scale on the right are also important. |
