Continual Plate Vacuum Transfer Dryer for chemical

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

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

(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

1.Drying plate
(1). Designing pressure: general is 0.4MPa, Max. can reach 1.6 Mpa.
(2).Work pressure: general is less then 0.4Mpa, and Max. can reach 1.6 Mpa.
(3).Heating medium: steam, hot water, oil. When the drying plates’temperature is 100°C, hot water can be used; when 100°C~150°C, it will be saturated water steam ≤0.4Mpa or steam-gas, and when 150°C~320°C, it will be oil; when 320°C it will be heated by electric, oil of fused salt.
2.Material transmission system
(1).headstock revoluton:1~10 rpm, electromagnetism of transducer timing.
(2).harrow arm: There are 2 to 8 pieces arm that be fixed on the headstock on the every layers.
(3). Harrow's blade: Surrounding the harrow's blade, float together with the surface of the plate to keep contact. There're various of types.
(4). Roller: for the products easily agglomerate, or with the requirements of grinding, the heat transfer and drying process might be reinforced by placing roller(s) at the appropriate place(s).