Drying equipment-pipe dryer
Author:admin
Date : 2016-02-24
Pipe dryer is one of the charcoal machine equipment dedicated equipment, mainly for drying raw materials.
Most carbon factory USES is hot air type pipe dryer, the advantage of the dryer is heated directly, fast drying, installation can be folded, save space.Its principle is to make the damp raw material is mixed with high temperature air flow in the pipe, the final moisture content is obtained by separator meets the requirements of raw materials.The dryer to include: fuel furnace, a number of pipe and elbow, fan and separator.
Usually we purchase back of raw material moisture content between 30% - 60%, just out of saw houses sawdust moisture in 80% - 100%, after a good airing and drying of raw material moisture content can be reduced to about 20%, but still not up to par.Ideal moisture content should be between 8% - 13%.But never in the actual production to measure the moisture content of raw material.Because it is very trouble, and be a lag in time.Because the dryer for drying of material strength is not a uniform and stable, every time open the oven door to add fuel, due to the cold air to enter, the temperature of the pipe will reduce rapidly, and raw material is added in the whole drying process is very frequent.So is the best way to judge its moisture content is qualified by vision and touch.
In general appearance is burnt, raw materials, look have the feeling of the oil is a sign of its moisture content is qualified, further validation of the method is to use hand grasp a handful of raw materials, clenched hard, and then let go, to see whether material can natural evenly spread out.The above said is usually testing method.Actually final raw material moisture content is qualified moulding machine.As long as can be squeezed qualified rod from the molding machine, then the moisture content of raw material is meet the requirements.Raw material drying is the key to control of the furnace temperature, require workers to adjust the temperature in time according to the raw materials have different appearance.