PLG Continual Plate Dryer

Introduce：Product DescriptionPLG- continuous Plate dryer
is a kind of high efficiency conducting and continuous drying equipment. Its
unique structure and operating principle provide advantages of high heat
efficiency, low energy consumption

Product Description
PLG Series continuous Plate dryer  is a
kind of high efficiency conducting and continuous drying equipment. Its unique
structure and operating principle provide advantages of high heat efficiency,
low energy consumption, less occupying area, simple configuration, easy
operation and control as well as good operating environment etc. It is widely
used in drying process in the fields of chemical, pharmaceuticals, agricultural
chemicals, foodstuff, fodder, process of agricultural and by-products etc., and
is well received by various industries. Now there are three big categories,
normal pressure, closed and vacuum styles and four specifications of 1200,
1500, 2200 and 2500; and three kinds of constructions A (carbon steel),
B(stainless steel for contact parts) and C (on the basis of B to add stainless
steel for steam pipes, main shaft and support, and stainless steel linings for
cylinder body and top cover). With a drying area of 4 to 180 square meters, now
we have hundreds of models of series products and various kinds of auxiliary
devices available to meet requirements of various products. 

Principle
It is an innovation horizontal batch-type vacuum
dryer . The moister of wet material will be evaporated by heat transmission.
The stirrer with squeegee will remove material on hot surface and move in the
container to form cycle flow. The evaporated moisture will be pumped by vacuum
pump.
Wet materials are fed continuously to the top
drying layer in the dryer. They will be turned and stirred continuously by
harrows when the harrow’s arm rotates, the material flows through the surface
of the drying plate along the exponential helical line. On the small drying
plate the material will be moved to its exterior edge and drop down to the
exterior edge of the large drying plate underneath, and will then be moved
inward and drop down from its central hole to the small drying plate on the
next layer. Both small and large drying plates are arranged alternately so as
materials can go through the whole dryer continuously. The heating media, which
could be saturated steam, hot water or thermal oil will be led into hollow
drying plates from one end to other end of the dryer. The dried product will
drop from the last layer of the drying plate to the bottom layer of the smell
body, and will be moved by harrows to the discharge port. The moisture exhausts
from materials and will be removed from the moist discharge port on the top
cover, or sucked out by the vacuum pump on the top cover for vacuum-type plate
dryer. The dried product discharged from the bottom layer can be packed
directly. The drying capability can be raised up if equipped with supplementary
devices such as finned heater, condenser for solvent recovery, bag dust filter,
return and mix mechanism for dried materials and suction fan etc. solvent in
those paste state and heat sensitive materials can be easily recovered, and
thermal decomposition and reaction can be also carried out. 

Features

(1) easy control, wide application
1. Regulate thickness of materials, rotating
speed of main shaft, number of harrow’s arm, style of and sizes harrows achieve
best drying process.
2. Each layer of drying plate can be fed with
hot or cold media individually to heat or cold materials and make temperature
control accurate and easy.
3. Dwell time of materials can be accurately
adjusted.
4. Single flowing direction of materials without
return flowing and mixing, uniform drying and stable quality, no re-mixing is
required.
(2) Easy and simple operation
1. Start stop of dryer is quite simple
2. After material feeding is stopped, they can
be easily discharged out of the dryer by harrows.
3. Careful cleaning and observation can be
carried inside the equipment through large-scale viewing window.

(3) Low energy consumption
1. Thin layer of materials, low speed of main
shaft, small power and energy required for conveying system of materials.
2. Dry by conducting heat so it has high heating
efficiency and low energy consumption.

(4)Good operation environment, solvent can be
recovered and powder discharge meet the requirements of exhaust.
1. Normal pressure type: as low speed of air
flow inside the equipment and moisture being high in upper part and low in
lower part, dust powder couldn’t float to the equipment, so there is almost no
dust powder in tail gas discharged from the moist discharge port on the top.
2. Closed type: equipped with solvent recovery
device that can recover organic solvent easily from moist-carrier gas. The
solvent recovery device has simple structure and high recovery rate, and
nitrogen can be used as moist-carrier gas in closed circulation for those
subject to burning, explosion and oxidation, and poisonous materials in order
for safe operation. Especially suitable for drying of flammable, explosive and
poisonous materials.
3. Vacuum type: if the plate dryer is operating
under vacuum state, it is particularly suitable for drying heat sensitive
materials.

(5) Easy installation and small occupying area.
1. As the dryer is in a whole for delivery, it
is quite easy to install and fix at site only by hoisting.
2. As drying plates being arranged by layers and
installed vertically, it takes a small occupying area though drying area is
large.