High Thermal Efficiency High Humidity Material Industrial Drying Equipment
Material Description:
High humidity material generally refers to the material with the water content of 50%-80%, the common
high humidity materials include pork / chicken / cow manure, bean dregs, drug residue, cassava dregs,
lees, fructose powder, soy sauce and vinegar residue, etc., it’ll need to be dried to the safe storage
moisture-13%, if you want to make rational utilization of these materials. The most traditional disposal
way of the livestock manure is to sell as farmyard manure with the low price and be used directly as the
agricultural fertilizer, its economic value is not to fully explored and utilized. In fact, these are the
precious fodder and fertilizer resources, if it can be developed and utilized, it will have great significance
to the organic fertilizer manufacturing, to the development of planting and breeding industry, to promote
agricultural production and income, energy saving and pollution-free green food, green agriculture
development, to environmental protection and people's health.
Process Flow:
The dewatered material will be transported to feeding head of the dryer through the screw conveyor after
scattering, and then it will be sent into the inside of the dryer through the unpowered spiral sealing
feeder (the patent technology of our company), and going through several following working areas after
getting into the dryer:
1. Material leading-in area
The material will come into contact with the high temperature negative pressure air after getting into this
area and plenty of water will be rapidly evaporated, and the material can’t be formed into sticky stuff
under the stirring of large guide angle lifting plate.
2. Cleaning area
The material curtain will be formed while the sludge is lifted up at this area, and it will cause the material
stick on the cylinder wall while it’s falling down, and the cleaning device is installed at this area (Lifting
style stirring plate, X type second time stirring plate, impacting chain, impacting plate), the material can
be quickly removed from the cylinder wall by the cleaning device, and the cleaning device can also
crush the materials which are bonded together, so as to increase the heat exchange area, increase the
time of heat exchange, avoid the generation of wind tunnel phenomenon, improve the drying rate.
3. Inclined lifting plate area
This area is the low temperature drying area, the slime of this area is at the low moisture and loose
state, and there is no adhesion phenomenon at this area, the finished products reach the moisture
requirements after the heat exchange, and then enter the final discharge area.
4. Discharging area
There aren’t stirring plates at this area of the dryer cylinder, and the material will be rolling to the
discharging port.
The material gradually becomes loose after drying, and discharged from the discharging end, and then
sent to the designated position by the conveying device, and the fine dust drawn out along with the tail
gas is collected by the dust collector.
Hot air enters into the drying machine from the feeding end, and the temperature is gradually reduced at
the same time of material convection heat transfer, and the water steam taken out under the suction of
induced draft fan, and then emitted into the air after processing.
System Advantages:
1. High thermal efficiency, low drying cost
New internal structure, and strengthen the cleaning of dispersed material and heat conduction, eliminate
the sticking phenomenon of the barrel body’s inner wall, it’s more adaptable to the material moisture
and stickiness, the heat exchanging area and the drying efficiency are increased. The operating
parameters can be changed according to different materials, and the heat exchange of the material in
the dryer is more fully.
2. Reliable running, good stability
The new type of feeding and discharging device, put an end to the phenomenon of the plug in
feeding, incontinuity, nonuniform and material return. The "aligning roller device” is adopted by the dryer,
which makes the tug and rolling ring always do the linear contact, and it greatly reduces the abrasion
and power consumption. The “zero horizontal thrust” of the dryer is realized, which greatly reduces the
abrasion of the gear wheel and supporting wheel, the cylinder operation is more stable and reliable.
